diff --git a/.gitignore b/.gitignore
index 3d0bebd42..bb7c0cff9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -25,3 +25,4 @@ tools/mkrom/mkrom
 /.vs
 CppProperties.json
 .idea
+cmake-build-debug
diff --git a/port/include/fs.h b/port/include/fs.h
index bfb21b3ec..05b91aa04 100644
--- a/port/include/fs.h
+++ b/port/include/fs.h
@@ -22,5 +22,6 @@ FILE *fsFileOpenRead(const char *name);
 void fsFileFree(FILE *f);
 
 const char *fsGetModDir(void);
+s32 fsCreateDir(const char *path);
 
 #endif
diff --git a/port/include/input.h b/port/include/input.h
index 6d5d88bfd..6171c2696 100644
--- a/port/include/input.h
+++ b/port/include/input.h
@@ -40,6 +40,7 @@ enum virtkey {
 	VK_DELETE = 76,
 	VK_LCTRL = 224,
 	VK_LSHIFT = 225,
+	VK_LALT = 226,
 	VK_RCTRL = 228,
 	VK_RSHIFT = 229,
 
@@ -56,6 +57,8 @@ enum virtkey {
 	/* same order as SDL gamecontroller buttons plus two buttons for triggers */
 	VK_JOY_BEGIN,
 	VK_JOY1_BEGIN = VK_JOY_BEGIN,
+	VK_JOY1_LSHOULDER = VK_JOY1_BEGIN + 9,
+	VK_JOY1_RSHOULDER = VK_JOY1_BEGIN + 10,
 	VK_JOY1_LTRIG = VK_JOY1_BEGIN + 30,
 	VK_JOY1_RTRIG = VK_JOY1_BEGIN + 31,
 	VK_JOY2_BEGIN = VK_JOY1_BEGIN + INPUT_MAX_CONTROLLER_BUTTONS,
diff --git a/port/include/mpsetups.h b/port/include/mpsetups.h
new file mode 100644
index 000000000..3ef143906
--- /dev/null
+++ b/port/include/mpsetups.h
@@ -0,0 +1,12 @@
+#ifndef _IN_MPSETUPS_H
+#define _IN_MPSETUPS_H
+
+#include "types.h"
+
+s32 mpsetupLoadCurrentFile(void);
+s32 mpsetupSaveCurrentFile(void);
+void mpsetupLoadSetup(s32 slotindex);
+s32 mpsetupSaveSetup(s32 slotindex, u8 savefile);
+void mpsetupCopyAllFromPak(void);
+
+#endif
diff --git a/port/src/fs.c b/port/src/fs.c
index 40335a3fa..459e72392 100644
--- a/port/src/fs.c
+++ b/port/src/fs.c
@@ -11,6 +11,9 @@
 #include "platform.h"
 #include "utils.h"
 #include "fs.h"
+#ifdef PLATFORM_WIN32
+#include <direct.h>
+#endif
 
 #define DEFAULT_BASEDIR_NAME "data"
 
@@ -280,3 +283,12 @@ void fsFileFree(FILE *f)
 {
 	fclose(f);
 }
+
+s32 fsCreateDir(const char *path)
+{
+#ifdef PLATFORM_WIN32
+	return _mkdir(fsFullPath(path));
+#else
+	return mkdir(fsFullPath(path), 0777);
+#endif
+}
diff --git a/port/src/input.c b/port/src/input.c
index 2bacbd646..96e37255e 100644
--- a/port/src/input.c
+++ b/port/src/input.c
@@ -88,8 +88,8 @@ static s32 mouseLockMode = MLOCK_AUTO;
 static u64 mouseCursorTime = 0;
 static s32 mouseShowCursor = 1;
 
-static f32 mouseSensX = 1.5f;
-static f32 mouseSensY = 1.5f;
+static f32 mouseSensX = 2.5f;
+static f32 mouseSensY = 2.5f;
 
 static s32 lastKey = 0;
 static char lastChar = 0;
@@ -1239,32 +1239,28 @@ void inputMouseGetRawDelta(s32 *dx, s32 *dy)
 	if (dy) *dy = mouseDY;
 }
 
-void inputMouseGetScaledDelta(f32 *dx, f32 *dy)
+void inputMouseGetScaledDelta(f32* dx, f32* dy)
 {
-	f32 mdx, mdy;
-	if (mouseLocked) {
-		mdx = mouseSensX * (f32)mouseDX / 100.0f;
-		mdy = mouseSensY * (f32)mouseDY / 100.0f;
-	} else {
-		mdx = 0.f;
-		mdy = 0.f;
-	}
-	if (dx) *dx = mdx;
-	if (dy) *dy = mdy;
+		f32 mdx = 0.f, mdy = 0.f;
+
+		if (mouseLocked) {
+				mdx = mouseSensX * ((f32)mouseDX / 3.5f) * 0.022f;
+				mdy = mouseSensY * ((f32)mouseDY / 3.5f) * 0.022f;
+		}
+		if (dx) *dx = mdx;
+		if (dy) *dy = mdy;
 }
 
-void inputMouseGetAbsScaledDelta(f32 *dx, f32 *dy)
+void inputMouseGetAbsScaledDelta(f32* dx, f32* dy)
 {
-	f32 mdx, mdy;
-	if (mouseLocked) {
-		mdx = fabsf(mouseSensX) * (f32)mouseDX / 100.0f;
-		mdy = fabsf(mouseSensY) * (f32)mouseDY / 100.0f;
-	} else {
-		mdx = 0.f;
-		mdy = 0.f;
-	}
-	if (dx) *dx = mdx;
-	if (dy) *dy = mdy;
+		f32 mdx = 0.f, mdy = 0.f;
+
+		if (mouseLocked) {
+				mdx = fabsf(mouseSensX) * ((f32)mouseDX / 3.5f) * 0.022f;
+				mdy = fabsf(mouseSensY) * ((f32)mouseDY / 3.5f) * 0.022f;
+		}
+		if (dx) *dx = mdx;
+		if (dy) *dy = mdy;
 }
 
 void inputMouseGetSpeed(f32 *x, f32 *y)
diff --git a/port/src/mpsetups.c b/port/src/mpsetups.c
new file mode 100644
index 000000000..2c308fb9c
--- /dev/null
+++ b/port/src/mpsetups.c
@@ -0,0 +1,896 @@
+#include "types.h"
+#include "constants.h"
+#include "bss.h"
+#include "game/pak.h"
+#include "game/filelist.h"
+#include "game/menu.h"
+#include "game/savebuffer.h"
+#include "game/mplayer/mplayer.h"
+#include <string.h>
+#include "fs.h"
+#include "system.h"
+#include "mpsetups.h"
+
+/*
+MP Setup File Format
+	# header
+	[version{1}]
+	[defaultsetup{1}]
+	[numsetups{1}]
+	# setups
+	[setup_1{80}]
+	...
+	[setup_n{80}]
+ */
+
+#define MPSETUP_VERSION 1
+
+#define MPSETUP_EXPORTDIR "$S/exported/"
+#define MPSETUP_FILENAME "mpsetups"
+#define MPSETUP_FILENAME_EXP "mpsetups-ext"
+
+#define MPSETUP_OP_DEFAULT 0
+#define MPSETUP_OP_IMPORT 1
+#define MPSETUP_OP_EXPORT 2
+
+#define MPSETUP_IMPORT_OVERWRITE 0
+#define MPSETUP_IMPORT_ADD 1
+
+#define MPSETUP_IMPORT_CONFLICT 0x1313
+
+extern struct menudialogdef g_MpSaveSetupNameMenuDialog;
+
+s16 g_MpCurrentSetup = -1;
+struct mpsetupfile g_MpSetupFile;
+
+static struct mpsetupfile g_ImportMpSetupFile;
+static u64 g_MpImportExportFilter[2];
+
+static char g_StatusText[128];
+static char g_TitleImportExportDialog[20];
+static char g_LabelSetDefault[20] = "Set Default\n";
+
+/* extended mpsetup menu definitions */
+
+static MenuItemHandlerResult menuhandlerRenameSetup(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerDeleteSetup(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerImportOrExportSettings(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerImportAction(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerOpenImportExportDialog(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerSelectSetupHandler(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerSetupRename(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerSetupDelete(s32 operation, struct menuitem *item, union handlerdata *data);
+static MenuItemHandlerResult menuhandlerSetupSetDefault(s32 operation, struct menuitem *item, union handlerdata *data);
+
+static struct menuitem g_StatusOkMenuItems[] = {
+	{
+		MENUITEMTYPE_LABEL,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_LESSLEFTPADDING,
+		(uintptr_t)g_StatusText,
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_SELECTABLE_CLOSESDIALOG | MENUITEMFLAG_SELECTABLE_CENTRE,
+		L_OPTIONS_347, // "OK"
+		0,
+		NULL,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+static struct menudialogdef g_StatusOkDialog = {
+	MENUDIALOGTYPE_SUCCESS,
+	L_OPTIONS_345, // "Cool!"
+	g_StatusOkMenuItems,
+	NULL,
+	MENUDIALOGFLAG_DISABLEBANNER,
+	NULL,
+};
+
+static struct menuitem g_StatusErrorMenuItems[] = {
+	{
+		MENUITEMTYPE_LABEL,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_LESSLEFTPADDING,
+		(uintptr_t)g_StatusText,
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_SELECTABLE_CLOSESDIALOG | MENUITEMFLAG_SELECTABLE_CENTRE,
+		L_OPTIONS_347, // "OK"
+		0,
+		NULL,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+/* public */
+struct menudialogdef g_StatusErrorDialog = {
+		MENUDIALOGTYPE_DANGER,
+		L_OPTIONS_277, // "Failed"
+		g_StatusErrorMenuItems,
+		NULL,
+		MENUDIALOGFLAG_DISABLEBANNER,
+		NULL,
+};
+
+static struct menuitem g_RenameSetupItems[] = {
+#if VERSION != VERSION_JPN_FINAL
+	{
+		MENUITEMTYPE_LABEL,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_LESSLEFTPADDING,
+		(uintptr_t)"Enter the setup name:\n",
+		0,
+		NULL,
+	},
+#endif
+	{
+		MENUITEMTYPE_KEYBOARD,
+		18,
+		0,
+		0,
+		1,
+		menuhandlerRenameSetup,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+static struct menudialogdef g_RenameSetupDialog = {
+		MENUDIALOGTYPE_DEFAULT,
+		(uintptr_t)"Setup Name:\n",
+		g_RenameSetupItems,
+		NULL,
+		MENUDIALOGFLAG_LITERAL_TEXT,
+		NULL,
+};
+
+static struct menuitem g_DeleteSetupItems[] = {
+	{
+		MENUITEMTYPE_LABEL,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_LESSLEFTPADDING,
+		(uintptr_t)"Delete Setup?\n",
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_SELECTABLE_CLOSESDIALOG | MENUITEMFLAG_SELECTABLE_CENTRE,
+		L_OPTIONS_385, // "No"
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_SELECTABLE_CENTRE,
+		L_OPTIONS_386, // "Yes"
+		0,
+		menuhandlerDeleteSetup,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+static struct menudialogdef g_DeleteSetupDialog = {
+		MENUDIALOGTYPE_DANGER,
+		(uintptr_t)"Delete Setup\n",
+		g_DeleteSetupItems,
+		NULL,
+		MENUDIALOGFLAG_LITERAL_TEXT,
+		NULL,
+};
+
+static struct menuitem g_ImportExportItems[] = {
+	{
+		MENUITEMTYPE_LIST,
+		0,
+		MENUITEMFLAG_LOCKABLEMINOR | MENUITEMFLAG_LABEL_CUSTOMCOLOUR,
+		140,
+		0x0000004d,
+		menuhandlerImportOrExportSettings,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+static struct menudialogdef g_ImportExportDialog = {
+	MENUDIALOGTYPE_DEFAULT,
+	(uintptr_t) g_TitleImportExportDialog,
+	g_ImportExportItems,
+	NULL,
+	MENUDIALOGFLAG_LITERAL_TEXT,
+	NULL,
+};
+
+static struct menuitem g_ManageImportExportItems[] = {
+	{
+		MENUITEMTYPE_SELECTABLE,
+		MPSETUP_OP_IMPORT,
+		MENUITEMFLAG_LITERAL_TEXT,
+		(uintptr_t)"Import Settings\n",
+		0,
+		menuhandlerOpenImportExportDialog,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		MPSETUP_OP_EXPORT,
+		MENUITEMFLAG_LITERAL_TEXT,
+		(uintptr_t)"Export Settings\n",
+		0,
+		menuhandlerOpenImportExportDialog,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+static struct menudialogdef g_ManageImportExportDialog = {
+	MENUDIALOGTYPE_DEFAULT,
+	(uintptr_t) "Import/Export\n",
+	g_ManageImportExportItems,
+	NULL,
+	MENUDIALOGFLAG_LITERAL_TEXT,
+	NULL,
+};
+
+static struct menuitem g_MpManageSettingsListItems[] = {
+	{
+		MENUITEMTYPE_LIST,
+		0,
+		MENUITEMFLAG_LABEL_CUSTOMCOLOUR,
+		160,
+		0x00000042,
+		menuhandlerSelectSetupHandler,
+	},
+	{ MENUITEMTYPE_END },
+
+};
+
+/* public */
+struct menudialogdef g_ManageSettingsDialog = {
+	MENUDIALOGTYPE_DEFAULT,
+	(uintptr_t) "Manage Settings\n",
+	g_MpManageSettingsListItems,
+	NULL,
+	MENUDIALOGFLAG_LITERAL_TEXT,
+	&g_ManageImportExportDialog,
+};
+
+static struct menuitem g_ManageSetupItems[] = {
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT,
+		(uintptr_t)"Rename\n",
+		0,
+		menuhandlerSetupRename,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT,
+		(uintptr_t)"Delete\n",
+		0,
+		menuhandlerSetupDelete,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT,
+		(uintptr_t)g_LabelSetDefault,
+		0,
+		menuhandlerSetupSetDefault,
+	},
+	{
+		MENUITEMTYPE_SEPARATOR,
+		0,
+		0,
+		0,
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_SELECTABLE_CLOSESDIALOG,
+		L_OPTIONS_213, // "Back"
+		0,
+		NULL,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+static struct menudialogdef g_ManageSetupDialog = {
+	MENUDIALOGTYPE_DEFAULT,
+	(uintptr_t)"Manage Setup",
+	g_ManageSetupItems,
+	NULL,
+	MENUDIALOGFLAG_LITERAL_TEXT,
+	NULL,
+};
+
+static struct menuitem g_ImportOverrideItems[] = {
+	{
+		MENUITEMTYPE_LABEL,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_LESSLEFTPADDING,
+		(uintptr_t) "How to resolve setups\nwith the same name?\n",
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		MPSETUP_IMPORT_ADD,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_SELECTABLE_CLOSESDIALOG,
+		(uintptr_t) "Add\n",
+		0,
+		menuhandlerImportAction,
+	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		MPSETUP_IMPORT_OVERWRITE,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_SELECTABLE_CLOSESDIALOG,
+		(uintptr_t) "Overwrite\n",
+		0,
+		menuhandlerImportAction,
+	},
+	{ MENUITEMTYPE_END },
+};
+
+static struct menudialogdef g_ImportOverrideDialog = {
+	MENUDIALOGTYPE_DEFAULT,
+	(uintptr_t)"Name Conflicts\n",
+	g_ImportOverrideItems,
+	NULL,
+	MENUDIALOGFLAG_LITERAL_TEXT,
+	NULL,
+};
+
+/* common utils */
+
+static s32 mpsetupDeserialize(FILE *f, struct mpsetupfile *setupfile)
+{
+	s32 rx = 0;
+
+	rx += fread(&setupfile->version, sizeof(setupfile->version), 1, f);
+	rx += fread(&setupfile->defaultsetup, sizeof(setupfile->defaultsetup), 1, f);
+	rx += fread(&setupfile->numsetups, sizeof(setupfile->numsetups), 1, f);
+
+	for (int i = 0; i < setupfile->numsetups; ++i) {
+		rx += fread(setupfile->setups[i].bytes, sizeof(setupfile->setups[i].bytes), 1, f);
+	}
+
+	return rx;
+}
+
+static s32 mpsetupSerialize(FILE *f, struct mpsetupfile *setupfile)
+{
+	s32 wx = 0;
+
+	wx += fwrite(&setupfile->version, sizeof(setupfile->version), 1, f);
+	wx += fwrite(&setupfile->defaultsetup, sizeof(setupfile->defaultsetup), 1, f);
+	wx += fwrite(&setupfile->numsetups, sizeof(setupfile->numsetups), 1, f);
+
+	for (int i = 0; i < setupfile->numsetups; ++i) {
+		wx += fwrite(setupfile->setups[i].bytes, sizeof(setupfile->setups[i].bytes), 1, f);
+	}
+
+	return wx;
+}
+
+static FILE *mpsetupOpenFile(bool write, u8 op) {
+	const char *filename = fsFullPath("$S/" MPSETUP_FILENAME ".bin");
+
+	if (op == MPSETUP_OP_EXPORT) {
+		// create export directory if it doesn't exist
+		if (fsFileSize(MPSETUP_EXPORTDIR) < 0) {
+			if (fsCreateDir(MPSETUP_EXPORTDIR) != 0) {
+				return NULL;
+			}
+		}
+		filename = fsFullPath(MPSETUP_EXPORTDIR MPSETUP_FILENAME_EXP ".bin");
+	} else if (op == MPSETUP_OP_IMPORT) {
+		// same name as export but different folder
+		filename = fsFullPath("$S/" MPSETUP_FILENAME_EXP ".bin");
+	}
+
+	FILE *f;
+
+	if (fsFileSize(filename) < 0) {
+		// setup file doesn't exist: create one
+		f = fsFileOpenWrite(filename);
+		fsFileFree(f);
+	}
+
+	if (write) {
+		f = fsFileOpenWrite(filename);
+	} else {
+		f = fsFileOpenRead(filename);
+	}
+
+	if (f == NULL) {
+		sysLogPrintf(LOG_ERROR, "Unable to open mp setup file");
+		return NULL;
+	}
+
+	return f;
+}
+
+static s32 mpsetupSaveFile(u8 op, struct mpsetupfile *setupfile)
+{
+	FILE *f = mpsetupOpenFile(true, op);
+	if (f == NULL) {
+		return -1;
+	}
+
+	s32 nwritten = mpsetupSerialize(f, setupfile);
+	if (nwritten < 1) {
+		fsFileFree(f);
+		sysLogPrintf(LOG_ERROR, "Unable to write the MP setup file");
+		snprintf(g_StatusText, sizeof(g_StatusText), "Unable to write the setup file\n");
+		return -1;
+	}
+
+	fsFileFree(f);
+	return 0;
+}
+
+static s32 mpsetupLoadFile(struct mpsetupfile *setupfile, u8 op)
+{
+	FILE *f = mpsetupOpenFile(false, op);
+	if (f == NULL) {
+		return -1;
+	}
+
+	mpsetupDeserialize(f, setupfile);
+
+	if (op == MPSETUP_OP_DEFAULT && setupfile->defaultsetup > 0) {
+		mpsetupLoadSetup(setupfile->defaultsetup - 1);
+	}
+
+	fsFileFree(f);
+
+	return 0;
+}
+
+static s32 mpsetupImportFile(u8 op, u8 skipOverlap)
+{
+	if (!skipOverlap) {
+		// check for names overlap
+		u8 overlap = false;
+		for (int i = 0; i < g_ImportMpSetupFile.numsetups; ++i) {
+			for (int j = 0; j < g_MpSetupFile.numsetups; ++j) {
+				if (strcmp(g_ImportMpSetupFile.setups[i].bytes, g_MpSetupFile.setups[j].bytes) == 0) {
+					overlap = true;
+					return MPSETUP_IMPORT_CONFLICT;
+				}
+			}
+		}
+	}
+
+	for (int i = 0; i < g_ImportMpSetupFile.numsetups; ++i) {
+		s16 overlapIdx = -1;
+		for (int j = g_MpSetupFile.numsetups-1; j >= 0; --j) {
+			if (strcmp(g_ImportMpSetupFile.setups[i].bytes, g_MpSetupFile.setups[j].bytes) == 0) {
+				overlapIdx = j;
+				break;
+			}
+		}
+
+		s16 importIdx = overlapIdx;
+		if (overlapIdx < 0 || op == MPSETUP_IMPORT_ADD) {
+			if (g_MpSetupFile.numsetups == MPSETUP_MAXSETUPS) {
+				snprintf(g_StatusText, sizeof(g_StatusText), "Number of setups exceeds %d\n", MPSETUP_MAXSETUPS);
+				return -1;
+			}
+			importIdx = g_MpSetupFile.numsetups++;
+		}
+
+		memcpy(g_MpSetupFile.setups[importIdx].bytes, g_ImportMpSetupFile.setups[i].bytes, MPSETUP_BLOCKSIZE);
+	}
+
+	return mpsetupSaveCurrentFile();
+}
+
+static s32 mpsetupExportFile(void)
+{
+	struct mpsetupfile expMpSetupFile;
+	expMpSetupFile.numsetups = 0;
+	expMpSetupFile.defaultsetup = 0;
+	expMpSetupFile.version = MPSETUP_VERSION;
+
+	u8 maxsetups = MPSETUP_MAXSETUPS;
+	maxsetups = MIN(maxsetups, g_MpSetupFile.numsetups);
+	for (int i = 0; i < maxsetups; ++i) {
+		u8 bank = i < 64 ? 0 : 1;
+		u8 bit = i - bank * 64;
+		if (g_MpImportExportFilter[bank] & (1 << bit)) {
+			u8 n = expMpSetupFile.numsetups;
+			expMpSetupFile.numsetups++;
+			char *name = g_MpSetupFile.setups[i].bytes;
+			memcpy(expMpSetupFile.setups[n].bytes, g_MpSetupFile.setups[i].bytes, MPSETUP_BLOCKSIZE);
+			expMpSetupFile.numsetups = n + 1;
+		}
+	}
+
+	s32 err = mpsetupSaveFile(MPSETUP_OP_EXPORT, &expMpSetupFile);
+	if (err) {
+		snprintf(g_StatusText, sizeof(g_StatusText), "Unable to write\nsetup file\n");
+	}
+
+	return err;
+}
+
+static s32 mpsetupDelete(void)
+{
+	s32 slotindex = g_Menus[g_MpPlayerNum].mpsetup.slotindex;
+	for (int i = slotindex; i < g_MpSetupFile.numsetups - 1; ++i) {
+		u8* dst = g_MpSetupFile.setups[i].bytes;
+		u8* src = g_MpSetupFile.setups[i+1].bytes;
+		memcpy(dst, src, MPSETUP_BLOCKSIZE);
+	}
+
+	if (g_MpCurrentSetup > slotindex) {
+		g_MpCurrentSetup--;
+	}
+	else if (g_MpCurrentSetup == slotindex) {
+		g_MpCurrentSetup = -1;
+	}
+
+	if (g_MpSetupFile.defaultsetup > slotindex + 1) {
+		 g_MpSetupFile.defaultsetup--;
+	}
+	else if (g_MpSetupFile.defaultsetup == slotindex + 1) {
+		g_MpSetupFile.defaultsetup = 0;
+	}
+
+	g_MpSetupFile.numsetups--;
+	return mpsetupSaveCurrentFile();
+}
+
+/* menu handlers */
+
+// Rename setup dialog
+static MenuItemHandlerResult menuhandlerRenameSetup(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	char *name = data->keyboard.string;
+	s32 slotindex = g_Menus[g_MpPlayerNum].mpsetup.slotindex;
+	struct setupblock *setup = &g_MpSetupFile.setups[slotindex];
+	s32 err;
+
+	switch (operation) {
+	case MENUOP_GETTEXT:
+		strcpy(name, setup->bytes);
+		break;
+	case MENUOP_SETTEXT:
+		strcpy(g_MpSetup.name, name);
+		break;
+	case MENUOP_SET:
+		strcpy(setup->bytes, name);
+		err = mpsetupSaveSetup(slotindex, true);
+		if (!err) {
+			menuPopDialog();
+		} else {
+			// TODO
+			// menuPushDialog(&g_FilemgrFileSavedMenuDialog);
+		}
+		break;
+	}
+
+	return 0;
+}
+
+// Delete setup dialog
+static MenuItemHandlerResult menuhandlerDeleteSetup(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	if (operation == MENUOP_SET) {
+		s32 err = mpsetupDelete();
+		if (!err) {
+			menuPopDialog();
+			menuPopDialog();
+		} else {
+			// TODO
+		}
+	}
+
+	return 0;
+}
+
+// Import (or Export) settings dialog
+static MenuItemHandlerResult menuhandlerImportOrExportSettings(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	static const char *labels[] = {
+		"Select All",
+		"Select None",
+		"Import",
+		"Export",
+	};
+
+	s32 op = g_Menus[g_MpPlayerNum].mpsetup.unke24;
+
+	struct mpsetupfile *setupfile = op == MPSETUP_OP_IMPORT ? &g_ImportMpSetupFile : &g_MpSetupFile;
+
+	u8 numsetups = setupfile->numsetups;
+	u8 numitems = numsetups + 3;
+	u8 bank = data->list.value < 64 ? 0 : 1;
+	u8 bit = data->list.value - bank * 64;
+	u8 hasselection = (g_MpImportExportFilter[0] | g_MpImportExportFilter[1]) != 0;
+	u8 ofs;
+	s32 err;
+	u32 colour;
+	s32 index;
+
+	switch (operation) {
+	case MENUOP_GETCOLOUR:
+		colour = data->list.unk04;
+		if (data->list.value == numitems - 1) {
+			data->list.unk04 = hasselection ? colour : (colour & 0xffffff00) | 0x66;
+		}
+		break;
+
+	case MENUOP_GETOPTIONCOUNT:
+		data->list.value = numitems;
+		break;
+
+	case MENUOP_GETOPTIONTEXT:
+		if (data->list.value < numsetups) {
+			return (uintptr_t) setupfile->setups[data->list.value].bytes;
+		} else {
+			// creates an offset to select the "Export" or "Import" label for the last item
+			ofs = (data->list.value == numitems - 1) ? op - 1 : 0;
+			return (intptr_t)labels[data->list.value - numsetups + ofs];
+		}
+
+	case MENUOP_SET:
+		if (data->list.value < setupfile->numsetups) {
+			g_MpImportExportFilter[bank] ^= (1 << bit);
+		} else {
+			index = data->list.value - setupfile->numsetups;
+
+			switch (index) {
+			// Select All
+			case 0:
+				g_MpImportExportFilter[0] = g_MpImportExportFilter[1] = -1;
+				break;
+			// Select None
+			case 1:
+				g_MpImportExportFilter[0] = g_MpImportExportFilter[1] = 0;
+				break;
+			// Export (or Import)
+			case 2:
+				if (hasselection) {
+					err = op == MPSETUP_OP_IMPORT ? mpsetupImportFile(0, false) : mpsetupExportFile();
+					if (!err) {
+						menuPopDialog();
+						if (op == MPSETUP_OP_IMPORT) {
+							// back to the 'Manage Settings' screen
+							menuPopDialog();
+							menuPushDialog(&g_ManageSettingsDialog);
+						} else {
+							snprintf(g_StatusText, sizeof(g_StatusText), "File %s.bin\nwritten to the folder 'exported'\n", MPSETUP_FILENAME_EXP);
+							menuPushDialog(&g_StatusOkDialog);
+						}
+					} else {
+						if (err == MPSETUP_IMPORT_CONFLICT) {
+							menuPopDialog();
+							menuPushDialog(&g_ImportOverrideDialog);
+						} else {
+							menuPushDialog(&g_StatusErrorDialog);
+						}
+					}
+				}
+				break;
+			}
+		}
+		break;
+
+	case MENUOP_GETSELECTEDINDEX:
+		data->list.value = 0x000fffff;
+		break;
+
+	case MENUOP_GETLISTITEMCHECKBOX:
+		if (data->list.value < numsetups) {
+			data->list.unk04 = (g_MpImportExportFilter[bank] & (1 << bit));
+		}
+		break;
+	}
+
+	return 0;
+}
+
+// Import: overwrite dialog
+static MenuItemHandlerResult menuhandlerImportAction(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	if (operation == MENUOP_SET) {
+		s32 err = mpsetupImportFile(item->param, true);
+		if (!err) {
+			menuPopDialog();
+			menuPushDialog(&g_ManageSettingsDialog);
+		} else {
+			menuPushDialog(&g_StatusErrorDialog);
+		}
+	}
+
+	return 0;
+}
+
+// Manage Import/Export settings dialog
+static MenuItemHandlerResult menuhandlerOpenImportExportDialog(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	switch (operation) {
+	case MENUOP_SET:
+		if (item->param == MPSETUP_OP_IMPORT) {
+			strcpy(g_TitleImportExportDialog, "Import Settings\n");
+			if (fsFileSize("$S/" MPSETUP_FILENAME_EXP ".bin") < 0) {
+				snprintf(
+					g_StatusText, sizeof(g_StatusText),
+					"No import file found.\n"
+					"Place the file %s.bin\n"
+					"Next to your %s.bin file\n",
+					MPSETUP_FILENAME_EXP, MPSETUP_FILENAME
+				);
+				menuPushDialog(&g_StatusErrorDialog);
+				return 0;
+			}
+
+			mpsetupLoadFile(&g_ImportMpSetupFile, MPSETUP_OP_IMPORT);
+		} else {
+			strcpy(g_TitleImportExportDialog, "Export Settings\n");
+		}
+		g_Menus[g_MpPlayerNum].mpsetup.unke24 = item->param;
+		g_MpImportExportFilter[0] = g_MpImportExportFilter[1] = -1;
+		menuPushDialog(&g_ImportExportDialog);
+		break;
+	}
+
+	return 0;
+}
+
+// Manage settings dialog
+static MenuItemHandlerResult menuhandlerSelectSetupHandler(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	u32 colour;
+	switch (operation) {
+	case MENUOP_GETCOLOUR:
+		colour = data->list.unk04;
+		if (data->list.value + 1 == g_MpSetupFile.defaultsetup) {
+			data->list.unk04 = (colour & 0xffff0000) | 0xff;
+		}
+		break;
+	case MENUOP_GETOPTIONCOUNT:
+		data->list.value = g_MpSetupFile.numsetups;
+		break;
+	case MENUOP_GETOPTIONTEXT:
+		return (uintptr_t) g_MpSetupFile.setups[data->list.value].bytes;
+	case MENUOP_SET:
+		g_Menus[g_MpPlayerNum].mpsetup.slotindex = data->list.value;
+		if (data->list.value == g_MpSetupFile.defaultsetup - 1) {
+			strcpy(g_LabelSetDefault, "Clear Default\n");
+		} else {
+			strcpy(g_LabelSetDefault, "Set Default\n");
+		}
+		menuPushDialog(&g_ManageSetupDialog);
+		break;
+	case MENUOP_GETSELECTEDINDEX:
+		data->list.value = 0xfffff;
+		break;
+	}
+
+	return 0;
+}
+
+static MenuItemHandlerResult menuhandlerSetupRename(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	if (operation == MENUOP_SET) {
+		menuPushDialog(&g_RenameSetupDialog);
+	}
+
+	return 0;
+}
+
+static MenuItemHandlerResult menuhandlerSetupDelete(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	if (operation == MENUOP_SET) {
+		menuPushDialog(&g_DeleteSetupDialog);
+	}
+
+	return 0;
+}
+
+static MenuItemHandlerResult menuhandlerSetupSetDefault(s32 operation, struct menuitem *item, union handlerdata *data)
+{
+	if (operation == MENUOP_SET) {
+		s32 selected = g_Menus[g_MpPlayerNum].mpsetup.slotindex;
+		// clicked on "clear default"
+		if (selected == g_MpSetupFile.defaultsetup - 1) {
+			g_MpSetupFile.defaultsetup = -1;
+			strcpy(g_LabelSetDefault, "Set Default\n");
+		} else {
+			g_MpSetupFile.defaultsetup = selected + 1;
+			strcpy(g_LabelSetDefault, "Clear Default\n");
+		}
+
+		mpsetupSaveCurrentFile();
+	}
+
+	return 0;
+}
+
+/* public functions */
+
+s32 mpsetupLoadCurrentFile(void)
+{
+	return mpsetupLoadFile(&g_MpSetupFile, MPSETUP_OP_DEFAULT);
+}
+
+s32 mpsetupSaveCurrentFile(void)
+{
+	g_MpSetupFile.version = MPSETUP_VERSION;
+	return mpsetupSaveFile(MPSETUP_OP_DEFAULT, &g_MpSetupFile);
+}
+
+s32 mpsetupSaveSetup(s32 slotindex, u8 savefile)
+{
+	struct savebuffer setup;
+
+	// request to add a new setup
+	if (slotindex == g_MpSetupFile.numsetups) {
+		g_MpCurrentSetup = g_MpSetupFile.numsetups++;
+	}
+
+	savebufferClear(&setup);
+	mpsetupfileSaveWad(&setup);
+
+	memcpy(g_MpSetupFile.setups[slotindex].bytes, setup.bytes, MPSETUP_BLOCKSIZE);
+
+	return savefile ? mpsetupSaveCurrentFile() : 0;
+}
+
+void mpsetupLoadSetup(s32 index)
+{
+	struct savebuffer buffer;
+	savebufferClear(&buffer);
+	struct setupblock *block = &g_MpSetupFile.setups[index];
+	memcpy(&buffer.bytes, block->bytes, MPSETUP_BLOCKSIZE);
+	mpsetupfileLoadWad(&buffer, g_MpSetupFile.version);
+	g_MpCurrentSetup = index;
+}
+
+void mpsetupCopyAllFromPak(void)
+{
+	if (fsFileSize("$S/" MPSETUP_FILENAME ".bin") > 0) {
+		return;
+	}
+
+	filelistCreate(1, FILETYPE_MPSETUP);
+	filelistsTick();
+
+	for (int i = 0; i < g_FileLists[1]->numfiles; ++i) {
+		struct savebuffer buffer;
+		savebufferClear(&buffer);
+		struct filelistfile *file = &g_FileLists[1]->files[i];
+		s32 device = pakFindBySerial(file->deviceserial);
+		s32 err = pakReadBodyAtGuid(device, file->fileid, buffer.bytes, 0);
+
+		if (err != 0) {
+			sysLogPrintf(LOG_ERROR, "Unable to read pak. device %d fileid %d deviceserial %d err %d",
+				device, file->fileid, file->deviceserial, err);
+			continue;
+		}
+
+		mpsetupfileLoadWad(&buffer, 0);
+
+		// save the file when writing the last setup
+		u8 savefile = i == g_FileLists[1]->numfiles - 1;
+		mpsetupSaveSetup(g_MpSetupFile.numsetups, savefile);
+	}
+
+	// to reset the mp setup
+	mpInit(false);
+}
diff --git a/port/src/optionsmenu.c b/port/src/optionsmenu.c
index 4771fc28b..e077acb31 100644
--- a/port/src/optionsmenu.c
+++ b/port/src/optionsmenu.c
@@ -10,6 +10,7 @@
 #include "game/menu.h"
 #include "game/gamefile.h"
 #include "game/player.h"
+#include "lib/joy.h"
 #include "video.h"
 #include "input.h"
 #include "config.h"
@@ -597,8 +598,10 @@ static MenuItemHandlerResult menuhandlerController(s32 operation, struct menuite
 		if (data->dropdown.value == 0) {
 			// unassign controller
 			inputAssignController(g_ExtMenuPlayer, -1);
+			joyReset();
 		} else if (data->dropdown.value <= numCtrls) {
 			inputAssignController(g_ExtMenuPlayer, ctrls[data->dropdown.value - 1]);
+			joyReset();
 		}
 		break;
 	case MENUOP_GETSELECTEDINDEX:
diff --git a/port/src/pdmain.c b/port/src/pdmain.c
index 58d37b192..344e954fd 100644
--- a/port/src/pdmain.c
+++ b/port/src/pdmain.c
@@ -259,7 +259,7 @@ void mainInit(void)
 	frametimeInit();
 	profileInit();
 	smokesInit();
-	mpInit();
+	mpInit(true);
 	pheadInit();
 	paksInit();
 	pheadInit2();
diff --git a/src/game/game_13c510.c b/src/game/artifact.c
similarity index 67%
rename from src/game/game_13c510.c
rename to src/game/artifact.c
index c2b4b81e9..390c161a6 100644
--- a/src/game/game_13c510.c
+++ b/src/game/artifact.c
@@ -7,7 +7,7 @@
 #include "game/game_0b2150.h"
 #include "game/tex.h"
 #include "game/sky.h"
-#include "game/game_13c510.h"
+#include "game/artifact.h"
 #include "game/bg.h"
 #include "game/stagetable.h"
 #include "game/room.h"
@@ -23,6 +23,70 @@
 #include "game/prop.h"
 #endif
 
+/**
+ * Artifacts are points of interest in the z-buffer.
+ *
+ * They correspond to:
+ * - Individual circles in the lens flare effect from the sun.
+ * - Individual corners of each light fixture's box.
+ *
+ * The game needs to do line of sight checks to these points. The collision
+ * system would normally be used for line of sight checks, but it only works
+ * with basic geometric volumes and also doesn't take into account the player's
+ * gun. Instead, the checks are done by reading from the previous frame's
+ * z-buffer.
+ *
+ * Typically, the z-buffer would be read by the scheduler after a graphics frame
+ * is rendered, but this only works if the z-buffer is a complete image.
+ * PD draws the scene, then clears the z-buffer before drawing the player's gun,
+ * so the z-buffer at the end only contains the player's gun. To work around
+ * this, the GPU is given commands to read the z-buffer as a texture and copy
+ * depth values to a safe place before clearing it. Then once the frame is
+ * rendered, the scheduler compares the saved depths with the current z-buffer
+ * and updates the artifact, applying the minimum of the two depths.
+ *
+ * The scheduler maintains 3 arrays of artifacts, each referenced by indexes
+ * which rotate between them.
+ * - Artifacts are written by the main thread using the write index.
+ *   The write and front indexes are then incremented.
+ * - The same artifacts are updated by the scheduler using the pending index.
+ *   The pending index is then updated.
+ * - The artifacts are then rendered on a later frame using the front index.
+ *
+ * In each artifacts array, the first several slots are reserved for the sun
+ * flare artifacts. The quantity depends on the number of suns in the stage
+ * (Skedar Ruins has 3) and there are 8 artifacts per sun. The remaining slots
+ * are used for light fixture corners. The array is big enough to handle at
+ * least 90 lights on screen at a time.
+ *
+ * The initial state of the indexes are write=0, front=1, pending=0.
+ * These are set in sched_reset_artifacts.
+ *
+ * The detailed workflow is:
+ * - CPU: Light artifacts are determined and added to write artifacts (0) array
+ * - CPU: Constructs the gdl in this order:
+ *     - Render scene
+ *     - Copy relevant parts of z-buffer to write depths (0) array
+ *     - Clear z-buffer and render gun
+ *     - Render artifacts by reading from front artifacts (1) array
+ * - CPU: increments write (0 -> 1) and front (1 -> 2) indexes
+ * - GPU: Executes above task. g_ArtifactDepths0 now contains depths, and is
+ *       pointed to by pending.
+ * - Scheduler: Reads the z-buffer, which at this point only contains the gun
+ *       depth information, and updates the artifact with the minimum of the two
+ * - Scheduler: Increments pending (0 -> 1)
+ *
+ * It appears that the front index should be initialised to 2 instead, so that
+ * it's one frame behind the others rather than two frames behind.
+ *
+ * There's no doubt this went through several iterations before landing on this
+ * implementation. It's likely that this was implemented using a single and full
+ * z-buffer and it worked well until they decided to clear the z-buffer before
+ * rendering the gun. There is evidence in zbuf.c that they allocated a second
+ * z-buffer and swapped it. But when memory got too tight they had to change it
+ * to this texture read method.
+ */
+
 u8 *var800a41a0;
 u32 var800a41a4;
 u32 var800a41a8;
@@ -44,11 +108,25 @@ void artifactsTick(void)
 	schedIncrementFrontArtifacts();
 }
 
-u16 func0f13c574(f32 arg0)
+u16 floatToN64Depth(f32 arg0)
 {
+	/**
+	 * Method to convert a 32 bit floating point depth value to the
+	 * unsigned 16 bit integer format used by the zbuffer on the N64.
+	 * The argument arg0 represents z normalized to [0, 1] * 32704.0f.
+	 *
+	 * It works by converting the depth value to a large, unsigned 32 bit
+	 * integer before scaling back down to an unsigned 16 bit integer.
+	 * The scaling is done using bit shift operations on the most & least
+	 * significant bytes of the resulting 16 bit integer, likely because
+	 * bit shift operations are faster than division. The segmentation of
+	 * this calculation at values 0x3f800, 0x3f000, etc. is probably
+	 * intended to reduce z-fighting by adding more differentiation for
+	 * distant z values.
+	 */
 	u32 value = arg0 * 8.0f;
-	u32 left;
-	u32 right = value;
+	u32 left; // forms the most significant byte of the final u16
+	u32 right = value; // forms the least significant byte of the final u16
 
 	if (value > 0x3f800) {
 		right = value & 0x7ff;
@@ -87,7 +165,7 @@ u16 func0f13c574(f32 arg0)
 	return left << 13 | (right << 2);
 }
 
-s32 func0f13c710(f32 arg0)
+s32 artifactsFloatToInt(f32 arg0)
 {
 	if (arg0 > 0.0f) {
 		if (arg0 > 2147483520.0f) {
@@ -232,8 +310,8 @@ void artifactsCalculateGlaresForRoom(s32 roomnum)
 
 					if (spdc[3] > 0.0001f) {
 						f20 = 1.0f / spdc[3];
-						x = func0f13c710(viewleft + (1.0f + spdc[0] * f20) * (viewwidth * 0.5f));
-						y = func0f13c710(viewtop + (1.0f - spdc[1] * f20) * (viewheight * 0.5f));
+						x = artifactsFloatToInt(viewleft + (1.0f + spdc[0] * f20) * (viewwidth * 0.5f));
+						y = artifactsFloatToInt(viewtop + (1.0f - spdc[1] * f20) * (viewheight * 0.5f));
 						f0 = (spdc[2] * f20 * 511.0f + 511.0f) * 32.0f;
 
 						if (f0 < 32576.0f) {
@@ -335,8 +413,8 @@ void artifactsCalculateGlaresForRoom(s32 roomnum)
 								f20 = -9999.0f;
 							}
 
-							xi = func0f13c710(viewleft + (1.0f + spdc[0] * f20) * (viewwidth * 0.5f));
-							yi = func0f13c710(viewtop + (1.0f - spdc[1] * f20) * (viewheight * 0.5f));
+							xi = artifactsFloatToInt(viewleft + (1.0f + spdc[0] * f20) * (viewwidth * 0.5f));
+							yi = artifactsFloatToInt(viewtop + (1.0f - spdc[1] * f20) * (viewheight * 0.5f));
 							f0 = (spdc[2] * f20 * 511.0f + 511.0f) * 32.0f;
 
 							if (g_ZbufPtr1
@@ -357,14 +435,20 @@ void artifactsCalculateGlaresForRoom(s32 roomnum)
 
 								if (index < MAX_ARTIFACTS) {
 #ifndef PLATFORM_N64
-									artifact->unk02 = artifactTestLos(&spec, &g_BgRooms[roomnum].pos, xi, yi);
+									artifact->visiblelos = artifactTestLos(&spec, &g_BgRooms[roomnum].pos, xi, yi);
 #endif
-									artifact->unk04 = func0f13c574(f0) >> 2;
-									artifact->unk08 = &g_ZbufPtr1[viGetWidth() * yi + xi];
+									/**
+									 * the original game performs artifact depth comparison
+									 * using the N64 depth values divided by 4. This is
+									 * accomplished by bit shifting the N64 depth value
+									 * to the right using >> 2
+									 */
+									artifact->expecteddepth = floatToN64Depth(f0) >> 2;
+									artifact->zbufptr = &g_ZbufPtr1[viGetWidth() * yi + xi];
 									artifact->light = &roomlights[i];
 									artifact->type = ARTIFACTTYPE_GLARE;
-									artifact->unk0c.u16_2 = xi;
-									artifact->unk0c.u16_1 = yi;
+									artifact->screenx = xi;
+									artifact->screeny = yi;
 								}
 							}
 						}
@@ -375,7 +459,7 @@ void artifactsCalculateGlaresForRoom(s32 roomnum)
 	}
 }
 
-u8 func0f13d3c4(u8 arg0, u8 arg1)
+u8 artifactsClamp(u8 arg0, u8 arg1)
 {
 	if (arg1 >= arg0 + 7) {
 		return arg0 + 7;
@@ -423,18 +507,18 @@ Gfx *artifactsRenderGlaresForRoom(Gfx *gdl, s32 roomnum)
 	u16 min;
 	u16 max;
 	f32 lightop_cur_frac;
-	s32 t2;
+	s32 numgood;
 	struct light *light;
 	u8 *s3;
 	s32 k;
 	s32 count;
-	u16 t4;
+	u16 actualdepth;
 	f32 add;
 	s32 l;
 	f32 brightness;
-	s32 avg;
+	s32 tolerance;
 	f32 f0;
-	s32 v1;
+	s32 difference;
 	s32 r;
 	s32 g;
 	s32 b;
@@ -460,6 +544,12 @@ Gfx *artifactsRenderGlaresForRoom(Gfx *gdl, s32 roomnum)
 		struct light *light2 = artifacts[i].light;
 		count = 0;
 
+		/**
+		 * light arifacts are created from several, closely spaced
+		 * textures that give the appearance of a dynamic light glare
+		 * as the character moves. Loop to count all the sub-artifacts
+		 * in this light.
+		 */
 		for (j = i; j < MAX_ARTIFACTS && artifacts[j].type == ARTIFACTTYPE_GLARE && artifacts[j].light == light2; j++) {
 			count++;
 		}
@@ -470,51 +560,65 @@ Gfx *artifactsRenderGlaresForRoom(Gfx *gdl, s32 roomnum)
 			if (roomnum == light->roomnum) {
 				lightindex = ((uintptr_t)light - (uintptr_t)g_BgLightsFileData) / sizeof(struct light);
 				s3 = &var800a41a0[lightindex * 3];
-				t2 = 0;
+				numgood = 0;
 				min = 0xffff;
 				max = 0;
 
+				/**
+				 * loop to determine the min & max depth of
+				 * the sub-artifacts composing this room light.
+				 */
 				for (k = i; k < i + count; k++) {
-					if (artifacts[k].unk04 > max) {
-						max = artifacts[k].unk04;
+					if (artifacts[k].expecteddepth > max) {
+						max = artifacts[k].expecteddepth;
 					}
 
-					if (artifacts[k].unk04 < min) {
-						min = artifacts[k].unk04;
+					if (artifacts[k].expecteddepth < min) {
+						min = artifacts[k].expecteddepth;
 					}
 				}
 
-				avg = (max - min) >> 1;
+				/**
+				 * Define a depth tolerance from the min & max
+				 * depths of sub-artifacts for a given light.
+				 * This will be used to determine which light
+				 * artifacts are visible when comparing depth
+				 * values of lights to other items rendered
+				 * on screen. Without this, the lights would
+				 * constantly flicker due to z-fighting caused
+				 * by the low precision of the N64 depth.
+				 */
+				tolerance = (max - min) >> 1;
 
-				if (avg < 25) {
-					avg = 25;
+				if (tolerance < 25) {
+					tolerance = 25;
 				}
 
 				for (k = i; k < i + count; k++) {
 #ifdef PLATFORM_N64
-					u16 tmp;
-					t4 = (artifacts[k].unk02 & 0xfffc) >> 2;
-					tmp = artifacts[k].unk04;
+					u16 expecteddepth;
+					actualdepth = (artifacts[k].actualdepth & 0xfffc) >> 2;
+					expecteddepth = artifacts[k].expecteddepth;
 
-					if (tmp < t4) {
-						v1 = t4 - tmp;
+					if (expecteddepth < actualdepth) {
+						difference = actualdepth - expecteddepth;
 					} else {
-						v1 = tmp - t4;
+						difference = expecteddepth - actualdepth;
 					}
 
-					if (avg >= v1) {
-						t2++;
+					if (difference <= tolerance) {
+						numgood++;
 					}
 #else
-					t2 += artifacts[k].unk02;
+					numgood += artifacts[k].visiblelos;
 #endif
 
 					artifacts[k].type = ARTIFACTTYPE_FREE;
 				}
 
-				s3[0] = func0f13d3c4(s3[0], t2 * 2);
+				s3[0] = artifactsClamp(s3[0], numgood * 2);
 
-				if (t2 > 0) {
+				if (numgood > 0) {
 					brightness = viGetFovY() * 0.017453292f;
 					add = cosf(brightness) / sinf(brightness) * 14.6f;
 
diff --git a/src/game/bg.c b/src/game/bg.c
index 2a3bab3dc..d1569bdc4 100644
--- a/src/game/bg.c
+++ b/src/game/bg.c
@@ -15,7 +15,7 @@
 #include "game/sky.h"
 #include "game/stars.h"
 #include "game/dyntex.h"
-#include "game/game_13c510.h"
+#include "game/artifact.h"
 #include "game/game_1531a0.h"
 #include "game/gfxmemory.h"
 #include "game/gfxreplace.h"
diff --git a/src/game/bondgun.c b/src/game/bondgun.c
index 2f929cb35..7415bf851 100644
--- a/src/game/bondgun.c
+++ b/src/game/bondgun.c
@@ -8477,7 +8477,7 @@ glabel var7f1aca90
 /*  f0a71e4:	100002d5 */ 	b	.L0f0a7d3c
 /*  f0a71e8:	8fbf0034 */ 	lw	$ra,0x34($sp)
 .L0f0a71ec:
-/*  f0a71ec:	0fc5d9ad */ 	jal	zbufDrawArtifactsOffscreen
+/*  f0a71ec:	0fc5d9ad */ 	jal	zbufSaveArtifactDepths
 /*  f0a71f0:	8fa4014c */ 	lw	$a0,0x14c($sp)
 /*  f0a71f4:	afa2014c */ 	sw	$v0,0x14c($sp)
 /*  f0a71f8:	0c002ca0 */ 	jal	viPrepareZbuf
@@ -9318,7 +9318,7 @@ glabel var7f1aca90
 /*  f0a71e4:	100002d5 */ 	b	.L0f0a7d3c
 /*  f0a71e8:	8fbf0034 */ 	lw	$ra,0x34($sp)
 .L0f0a71ec:
-/*  f0a71ec:	0fc5d9ad */ 	jal	zbufDrawArtifactsOffscreen
+/*  f0a71ec:	0fc5d9ad */ 	jal	zbufSaveArtifactDepths
 /*  f0a71f0:	8fa4014c */ 	lw	$a0,0x14c($sp)
 /*  f0a71f4:	afa2014c */ 	sw	$v0,0x14c($sp)
 /*  f0a71f8:	0c002ca0 */ 	jal	viPrepareZbuf
@@ -10159,7 +10159,7 @@ glabel var7f1aca90
 /*  f0a4f30:	100002cd */ 	beqz	$zero,.NB0f0a5a68
 /*  f0a4f34:	8fbf0034 */ 	lw	$ra,0x34($sp)
 .NB0f0a4f38:
-/*  f0a4f38:	0fc5c4d5 */ 	jal	zbufDrawArtifactsOffscreen
+/*  f0a4f38:	0fc5c4d5 */ 	jal	zbufSaveArtifactDepths
 /*  f0a4f3c:	8fa40144 */ 	lw	$a0,0x144($sp)
 /*  f0a4f40:	afa20144 */ 	sw	$v0,0x144($sp)
 /*  f0a4f44:	0c002d00 */ 	jal	viPrepareZbuf
@@ -10957,7 +10957,7 @@ void bgunRender(Gfx **gdlptr)
 	}
 
 #ifdef PLATFORM_N64 // TODO
-	gdl = zbufDrawArtifactsOffscreen(gdl);
+	gdl = zbufSaveArtifactDepths(gdl);
 #endif
 	gdl = viPrepareZbuf(gdl);
 	gdl = vi0000b1d0(gdl);
diff --git a/src/game/bossfile.c b/src/game/bossfile.c
index 9c8e99705..0a9690bed 100644
--- a/src/game/bossfile.c
+++ b/src/game/bossfile.c
@@ -138,8 +138,6 @@ void bossfileLoad(void)
 		g_BossFile.usingmultipletunes = savebufferReadBits(&buffer, 1);
 		g_AltTitleUnlocked = savebufferReadBits(&buffer, 1);
 		g_AltTitleEnabled = savebufferReadBits(&buffer, 1);
-
-		func0f0d54c4(&buffer);
 	}
 
 	if (failed) {
@@ -168,7 +166,7 @@ void bossfileSave(void)
 	savebufferOr(&buffer, g_Vars.language, 4);
 
 	for (i = 0; i < ARRAYCOUNT(g_BossFile.teamnames); i++) {
-		func0f0d55a4(&buffer, g_BossFile.teamnames[i]);
+		savebufferWriteString(&buffer, g_BossFile.teamnames[i]);
 	}
 
 	if (g_BossFile.tracknum == -1) {
@@ -185,8 +183,6 @@ void bossfileSave(void)
 	savebufferOr(&buffer, g_AltTitleUnlocked, 1);
 	savebufferOr(&buffer, g_AltTitleEnabled, 1);
 
-	func0f0d54c4(&buffer);
-
 	fileid = bossfileFindFileId();
 
 	if (fileid == 0) {
diff --git a/src/game/challenge.c b/src/game/challenge.c
index 8c738105f..2377e43ff 100644
--- a/src/game/challenge.c
+++ b/src/game/challenge.c
@@ -400,6 +400,8 @@ struct mpconfigfull *challengeLoadConfig(s32 confignum, u8 *buffer, s32 len)
 	extern struct mpstrings EXT_SEG _mpstringsSSegmentRomEnd;
 	extern struct mpstrings EXT_SEG _mpstringsISegmentRomEnd;
 
+	extern struct mpconfig g_MpConfigs[];
+
 	BTYPE banks[][2] = {
 		{ (BTYPE)REF_SEG _mpstringsESegmentRomStart, (BTYPE)REF_SEG _mpstringsESegmentRomEnd },
 		{ (BTYPE)REF_SEG _mpstringsJSegmentRomStart, (BTYPE)REF_SEG _mpstringsJSegmentRomEnd },
@@ -421,6 +423,7 @@ struct mpconfigfull *challengeLoadConfig(s32 confignum, u8 *buffer, s32 len)
 	bank = banks[language_id][0];
 	loadedstrings = dmaExecWithAutoAlign(buffer2, bank + confignum * sizeof(struct mpstrings), sizeof(struct mpstrings));
 
+	mpconfig->config = g_MpConfigs[confignum];
 	mpconfig->strings = *loadedstrings;
 
 	return mpconfig;
diff --git a/src/game/filemgr.c b/src/game/filemgr.c
index e82d7af15..45b85efae 100644
--- a/src/game/filemgr.c
+++ b/src/game/filemgr.c
@@ -499,11 +499,6 @@ char *filemgrMenuTextFileType(struct menuitem *item)
 	case FILEOP_LOAD_GAME:
 	case FILEOP_READ_GAME:
 		return langGet(names[0]);
-	case FILEOP_SAVE_MPSETUP:
-	case FILEOP_WRITE_MPSETUP:
-	case FILEOP_LOAD_MPSETUP:
-	case FILEOP_READ_MPSETUP:
-		return langGet(names[1]);
 	case FILEOP_SAVE_MPPLAYER:
 	case FILEOP_WRITE_MPPLAYER:
 	case FILEOP_LOAD_MPPLAYER:
@@ -816,12 +811,6 @@ bool filemgrAttemptOperation(s32 device, bool closeonsuccess)
 				g_Menus[g_MpPlayerNum].fm.fileid,
 				g_Menus[g_MpPlayerNum].fm.deviceserial);
 		break;
-	case FILEOP_SAVE_MPSETUP:
-		errnum = mpsetupfileSave(device,
-				g_Menus[g_MpPlayerNum].fm.fileid,
-				g_Menus[g_MpPlayerNum].fm.deviceserial);
-		showfilesaved = true;
-		break;
 	case FILEOP_WRITE_GAME:
 	case FILEOP_WRITE_MPSETUP:
 	case FILEOP_WRITE_MPPLAYER:
@@ -845,11 +834,6 @@ bool filemgrAttemptOperation(s32 device, bool closeonsuccess)
 				g_Menus[g_MpPlayerNum].fm.fileid,
 				g_Menus[g_MpPlayerNum].fm.deviceserial);
 		break;
-	case FILEOP_LOAD_MPSETUP:
-		errnum = mpsetupfileLoad(device,
-				g_Menus[g_MpPlayerNum].fm.fileid,
-				g_Menus[g_MpPlayerNum].fm.deviceserial);
-		break;
 	case FILEOP_READ_GAME:
 	case FILEOP_READ_MPSETUP:
 	case FILEOP_READ_MPPLAYER:
@@ -2780,7 +2764,7 @@ MenuDialogHandlerResult filemgrMainMenuDialog(s32 operation, struct menudialogde
 		g_Menus[g_MpPlayerNum].fm.filetypeplusone = 0;
 
 		filelistCreate(0, FILETYPE_GAME);
-		mpInit();
+		mpInit(true);
 
 		// Set MP player names to "Player 1" through 4 if blank
 		for (i = 0; i < MAX_PLAYERS; i++) {
@@ -3307,14 +3291,6 @@ struct menuitem g_FilemgrOperationsMenuItems[] = {
 		0,
 		filemgrOpenCopyFileMenuHandler,
 	},
-	{
-		MENUITEMTYPE_SELECTABLE,
-		FILETYPE_MPSETUP,
-		0,
-		L_OPTIONS_104, // "Combat Simulator Settings File"
-		0,
-		filemgrOpenCopyFileMenuHandler,
-	},
 	{
 		MENUITEMTYPE_SELECTABLE,
 		FILETYPE_MPPLAYER,
@@ -3347,14 +3323,6 @@ struct menuitem g_FilemgrOperationsMenuItems[] = {
 		0,
 		filemgrOpenDeleteFileMenuHandler,
 	},
-	{
-		MENUITEMTYPE_SELECTABLE,
-		FILETYPE_MPSETUP,
-		0,
-		L_OPTIONS_104, // "Combat Simulator Settings File"
-		0,
-		filemgrOpenDeleteFileMenuHandler,
-	},
 	{
 		MENUITEMTYPE_SELECTABLE,
 		FILETYPE_MPPLAYER,
diff --git a/src/game/fmb.c b/src/game/fmb.c
index f6de5aadd..3cd114d0f 100644
--- a/src/game/fmb.c
+++ b/src/game/fmb.c
@@ -133,14 +133,6 @@ struct menuitem g_GameFiles4MbMenuItems[] = {
 		0,
 		filemgrOpenCopyFileMenuHandler,
 	},
-	{
-		MENUITEMTYPE_SELECTABLE,
-		1,
-		0,
-		L_OPTIONS_104, // "Combat Simulator Settings File"
-		0,
-		filemgrOpenCopyFileMenuHandler,
-	},
 	{
 		MENUITEMTYPE_SELECTABLE,
 		2,
@@ -173,14 +165,6 @@ struct menuitem g_GameFiles4MbMenuItems[] = {
 		0,
 		filemgrOpenDeleteFileMenuHandler,
 	},
-	{
-		MENUITEMTYPE_SELECTABLE,
-		1,
-		0,
-		L_OPTIONS_104, // "Combat Simulator Settings File"
-		0,
-		filemgrOpenDeleteFileMenuHandler,
-	},
 	{
 		MENUITEMTYPE_SELECTABLE,
 		2,
diff --git a/src/game/gamefile.c b/src/game/gamefile.c
index e17411d6b..ed6ac2c98 100644
--- a/src/game/gamefile.c
+++ b/src/game/gamefile.c
@@ -395,8 +395,6 @@ s32 gamefileLoad(s32 device)
 				frSetWeaponFound(WEAPON_REMOTEMINE);
 			}
 #endif
-
-			func0f0d54c4(&buffer);
 			gamefileApplyOptions(&g_GameFile);
 
 			return 0;
@@ -499,7 +497,7 @@ s32 gamefileSave(s32 device, s32 fileid, u16 deviceserial)
 
 	if (device >= 0) {
 		savebufferClear(&buffer);
-		func0f0d55a4(&buffer, g_GameFile.name);
+		savebufferWriteString(&buffer, g_GameFile.name);
 
 		savebufferOr(&buffer, g_GameFile.thumbnail, 5);
 		savebufferOr(&buffer, g_GameFile.totaltime, 32);
@@ -556,8 +554,6 @@ s32 gamefileSave(s32 device, s32 fileid, u16 deviceserial)
 			savebufferOr(&buffer, g_GameFile.weaponsfound[i], 8);
 		}
 
-		func0f0d54c4(&buffer);
-
 		ret = pakSaveAtGuid(device, fileid, PAKFILETYPE_GAME, buffer.bytes, &newfileid, 0);
 		g_FilemgrLastPakError = ret;
 
diff --git a/src/game/lv.c b/src/game/lv.c
index 56d9e9ab3..8db23f155 100644
--- a/src/game/lv.c
+++ b/src/game/lv.c
@@ -28,7 +28,7 @@
 #include "game/portal.h"
 #include "game/fmb.h"
 #include "game/sky.h"
-#include "game/game_13c510.h"
+#include "game/artifact.h"
 #include "game/game_1531a0.h"
 #include "game/zbuf.h"
 #include "game/challenge.h"
diff --git a/src/game/menu.c b/src/game/menu.c
index 1e9159cae..c9f4cca3a 100644
--- a/src/game/menu.c
+++ b/src/game/menu.c
@@ -147,6 +147,33 @@ s32 g_MouseDimmedMode = false;
 s32 g_MouseEndDeferredSlider = false;
 #endif
 
+s32 menuAlt1Pressed(s32 playerNum)
+{
+	const s32 rshoulderKey = VK_JOY1_RSHOULDER + playerNum * INPUT_MAX_CONTROLLER_BUTTONS;
+
+	if (playerNum == 0) {
+		return inputKeyJustPressed(VK_LCTRL) || inputKeyJustPressed(rshoulderKey);
+	}
+
+	return inputKeyJustPressed(rshoulderKey);
+}
+
+s32 menuAlt2Pressed(s32 playerNum)
+{
+	const s32 lshoulderKey = VK_JOY1_LSHOULDER + playerNum * INPUT_MAX_CONTROLLER_BUTTONS;
+
+	if (playerNum == 0) {
+		return inputKeyJustPressed(VK_LALT) || inputKeyJustPressed(lshoulderKey);
+	}
+
+	return inputKeyJustPressed(lshoulderKey);
+}
+
+s32 menuAltAnyPressed(s32 playerNum)
+{
+	return menuAlt1Pressed(playerNum) || menuAlt2Pressed(playerNum);
+}
+
 void menuPlaySound(s32 menusound)
 {
 	s32 sound = -1;
@@ -3581,8 +3608,8 @@ void func0f0f820c(struct menudialogdef *dialogdef, s32 root)
 
 	g_MpPlayerNum = prevplayernum;
 
-	g_MenuData.unk008 = root;
-	g_MenuData.unk00c = dialogdef;
+	g_MenuData.prevmenuroot = root;
+	g_MenuData.prevmenudialog = dialogdef;
 }
 
 void menuSetBackground(s32 bg)
@@ -3656,7 +3683,7 @@ void menuPushRootDialog(struct menudialogdef *dialogdef, s32 root)
 	g_Menus[g_MpPlayerNum].unk820 = 1;
 
 	g_MenuData.root = root;
-	g_MenuData.unk008 = -1;
+	g_MenuData.prevmenuroot = -1;
 	g_MenuData.unk5d5_02 = false;
 
 	if (root == MENUROOT_MAINMENU
@@ -3978,13 +4005,13 @@ void menuReset(void)
 	}
 
 	g_MenuData.unk668 = -1;
-	g_MenuData.unk00c = 0;
-	g_MenuData.unk008 = -1;
+	g_MenuData.prevmenudialog = 0;
+	g_MenuData.prevmenuroot = -1;
 	g_MenuData.count = 0;
 	g_MenuData.root = 0;
 	g_MenuData.unk010 = 0;
 	g_MenuData.bg = 0;
-	g_MenuData.unk5d5_06 = false;
+	g_MenuData.isdialogopen = false;
 	g_MenuData.nextbg = 255;
 	g_MenuData.bannernum = -1;
 
diff --git a/src/game/menuitem.c b/src/game/menuitem.c
index 72c24573a..85fa18105 100644
--- a/src/game/menuitem.c
+++ b/src/game/menuitem.c
@@ -614,6 +614,15 @@ Gfx *menuitemListRender(Gfx *gdl, struct menurendercontext *context)
 							height = 0;
 						}
 
+						// reuse the label color flag here
+						if (context->item->flags & MENUITEMFLAG_LABEL_CUSTOMCOLOUR) {
+							u32 savedunk04 = sp15c.list.unk04;
+							sp15c.list.unk04 = colour;
+							context->item->handler(MENUOP_GETCOLOUR, context->item, &sp15c);
+							colour = sp15c.list.unk04;
+							sp15c.list.unk04 = savedunk04;
+						}
+
 						gdl = textRenderProjected(gdl, &x, &y, text2, chars, font, colour, context->width - left + context->x, height, sp128, 0);
 
 						// Consider a checkbox
@@ -1520,6 +1529,7 @@ bool menuitemKeyboardTick(struct menuitem *item, struct menuinputs *inputs, u32
 			inputs->start = false;
 		}
 
+		u8 maxlen = item->param == 0 ? 10 : item->param;
 #ifndef PLATFORM_N64
 		if (g_MenuKeyboardPlayer == g_MpPlayerNum) {
 			// match caps state to keyboard shift/caps if typing with keyboard
@@ -1531,7 +1541,7 @@ bool menuitemKeyboardTick(struct menuitem *item, struct menuinputs *inputs, u32
 			// handle text input
 			s32 prevpos = strlen(kb->string);
 			s32 pos = prevpos;
-			s32 result = inputTextHandler(kb->string, sizeof(kb->string), &pos, true);
+			s32 result = inputTextHandler(kb->string, maxlen-1, &pos, true);
 			if (result == -1) {
 				// cancel
 				kb->row = 5;
@@ -1608,7 +1618,7 @@ bool menuitemKeyboardTick(struct menuitem *item, struct menuinputs *inputs, u32
 				s32 textwidth;
 				s32 textheight;
 
-				if (kb->string[9] == '\0') {
+				if (kb->string[maxlen-1] == '\0') {
 					// String is not full
 					i = 0;
 
@@ -1644,7 +1654,7 @@ bool menuitemKeyboardTick(struct menuitem *item, struct menuinputs *inputs, u32
 		// Handle deleting
 		if (delete && kb->string[0] != '\0') {
 			s32 deleted = false;
-			s32 i = 10;
+			s32 i = maxlen;
 
 			menuPlaySound(MENUSOUND_FOCUS);
 
diff --git a/src/game/menutick.c b/src/game/menutick.c
index 5a795da9d..671d33cc0 100644
--- a/src/game/menutick.c
+++ b/src/game/menutick.c
@@ -59,7 +59,7 @@ void menuTick(void)
 	s32 i;
 	s32 j;
 	s32 k;
-	s32 sp344;
+	s32 isdialogopen;
 	s32 sp340 = true;
 	s32 anyopen = false;
 
@@ -285,7 +285,7 @@ void menuTick(void)
 		var8006294c = 1;
 
 		if (g_MenuData.root == MENUROOT_MPSETUP || g_MenuData.root == MENUROOT_4MBMAINMENU) {
-			if (g_MenuData.unk008 == -1) {
+			if (g_MenuData.prevmenuroot == -1) {
 				g_MpSetup.chrslots &= 0xfff0;
 			}
 
@@ -295,7 +295,7 @@ void menuTick(void)
 				if (g_Menus[i].curdialog) {
 					g_Menus[i].playernum = g_MpNumJoined++;
 
-					if (g_MenuData.unk008 == -1) {
+					if (g_MenuData.prevmenuroot == -1) {
 						g_MpSetup.chrslots |= (1 << i);
 					}
 				}
@@ -473,7 +473,6 @@ void menuTick(void)
 				(g_MenuData.root == MENUROOT_MPSETUP || g_MenuData.root == MENUROOT_4MBMAINMENU)) {
 			var80062948 = 1;
 			filelistCreate(0, FILETYPE_MPPLAYER);
-			filelistCreate(1, FILETYPE_MPSETUP);
 		}
 
 		if (var80062944) {
@@ -486,31 +485,31 @@ void menuTick(void)
 	}
 
 	g_MpPlayerNum = 0;
-	sp344 = false;
+	isdialogopen = false;
 
 	for (i = 0; i < ARRAYCOUNT(g_Menus); i++) {
 		if (g_Menus[i].curdialog) {
-			sp344 = true;
+			isdialogopen = true;
 		}
 	}
 
-	if ((g_MenuData.unk5d5_06 || g_MenuData.unk008 != -1) && sp344 == false) {
+	if ((g_MenuData.isdialogopen || g_MenuData.prevmenuroot != -1) && isdialogopen == false) {
 		if ((g_MenuData.root == MENUROOT_MPSETUP || g_MenuData.root == MENUROOT_4MBMAINMENU)
-				&& g_MenuData.unk008 == -1) {
+				&& g_MenuData.prevmenuroot == -1) {
 			if (g_Vars.mpsetupmenu == MPSETUPMENU_GENERAL) {
-				g_MenuData.unk008 = MENUROOT_MAINMENU;
-				g_MenuData.unk00c = IS4MB() ? &g_CiMenuViaPauseMenuDialog : &g_CiMenuViaPcMenuDialog;
+				g_MenuData.prevmenuroot = MENUROOT_MAINMENU;
+				g_MenuData.prevmenudialog = IS4MB() ? &g_CiMenuViaPauseMenuDialog : &g_CiMenuViaPcMenuDialog;
 			} else if (IS4MB()) {
-				g_MenuData.unk008 = MENUROOT_4MBMAINMENU;
-				g_MenuData.unk00c = &g_MainMenu4MbMenuDialog;
+				g_MenuData.prevmenuroot = MENUROOT_4MBMAINMENU;
+				g_MenuData.prevmenudialog = &g_MainMenu4MbMenuDialog;
 			} else {
-				g_MenuData.unk008 = MENUROOT_MPSETUP;
-				g_MenuData.unk00c = &g_CombatSimulatorMenuDialog;
+				g_MenuData.prevmenuroot = MENUROOT_MPSETUP;
+				g_MenuData.prevmenudialog = &g_CombatSimulatorMenuDialog;
 			}
 		}
 
-		if (g_MenuData.unk008 != -1) {
-			if (g_MenuData.unk008 == -5) {
+		if (g_MenuData.prevmenuroot != -1) {
+			if (g_MenuData.prevmenuroot == -5) {
 				// Match is beginning
 				mpStartMatch();
 				menuStop();
@@ -519,7 +518,7 @@ void menuTick(void)
 					bossfileSave();
 					g_Vars.modifiedfiles &= ~MODFILE_MPSETUP;
 				}
-			} else if (g_MenuData.unk008 == -6) {
+			} else if (g_MenuData.prevmenuroot == -6) {
 				// Match is ending
 				s32 playernum = 0;
 
@@ -542,17 +541,17 @@ void menuTick(void)
 								setCurrentPlayerNum(playernum);
 								endscreenPushCoop();
 								setCurrentPlayerNum(prevplayernum);
-								sp344 = true;
+								isdialogopen = true;
 							}
 						} else if (g_Vars.antiplayernum >= 0) {
 							s32 prevplayernum = g_Vars.currentplayernum;
 							setCurrentPlayerNum(playernum);
 							endscreenPushAnti();
 							setCurrentPlayerNum(prevplayernum);
-							sp344 = true;
+							isdialogopen = true;
 						} else {
 							mpPushEndscreenDialog(playernum, i);
-							sp344 = true;
+							isdialogopen = true;
 
 							if (g_PlayerConfigsArray[i].fileguid.fileid && g_PlayerConfigsArray[i].fileguid.deviceserial) {
 								func0f0fd548(i);
@@ -562,7 +561,7 @@ void menuTick(void)
 						playernum++;
 					}
 				}
-			} else if (g_MenuData.unk008 == -7) {
+			} else if (g_MenuData.prevmenuroot == -7) {
 				menuStop();
 				g_FileState = FILESTATE_CHANGINGAGENT;
 				gamefileLoadDefaults(&g_GameFile);
@@ -571,8 +570,8 @@ void menuTick(void)
 				musicQueueStopAllEvent();
 			} else {
 				bool startmusic = false;
-				menuPushRootDialog(g_MenuData.unk00c, g_MenuData.unk008);
-				sp344 = true;
+				menuPushRootDialog(g_MenuData.prevmenudialog, g_MenuData.prevmenuroot);
+				isdialogopen = true;
 
 				if (g_MenuData.root == MENUROOT_MPSETUP || g_MenuData.root == MENUROOT_4MBMAINMENU) {
 					startmusic = true;
@@ -598,8 +597,8 @@ void menuTick(void)
 				}
 			}
 
-			g_MenuData.unk00c = NULL;
-			g_MenuData.unk008 = -1;
+			g_MenuData.prevmenudialog = NULL;
+			g_MenuData.prevmenuroot = -1;
 		} else {
 			switch (g_MenuData.root) {
 			case MENUROOT_ENDSCREEN:
@@ -751,5 +750,5 @@ void menuTick(void)
 	}
 
 	g_ScaleX = 1;
-	g_MenuData.unk5d5_06 = sp344 ? true : false;
+	g_MenuData.isdialogopen = isdialogopen ? true : false;
 }
diff --git a/src/mpconfigs.c b/src/game/mpconfigs.c
similarity index 100%
rename from src/mpconfigs.c
rename to src/game/mpconfigs.c
diff --git a/src/game/mplayer/mplayer.c b/src/game/mplayer/mplayer.c
index 9d9c73b53..f3a8b20cd 100644
--- a/src/game/mplayer/mplayer.c
+++ b/src/game/mplayer/mplayer.c
@@ -28,6 +28,9 @@
 #include "lib/lib_317f0.h"
 #include "data.h"
 #include "types.h"
+#include "fs.h"
+#include "system.h"
+#include "mpsetups.h"
 
 // bss
 struct chrdata *g_MpAllChrPtrs[MAX_MPCHRS];
@@ -515,12 +518,6 @@ void mpPlayerSetDefaults(s32 playernum, bool autonames)
 	for (i = 0; i < ARRAYCOUNT(g_PlayerConfigsArray); i++) {
 		g_PlayerConfigsArray[playernum].gunfuncs[i] = 0;
 	}
-
-#ifndef PLATFORM_N64
-	for (i = 0; i < ARRAYCOUNT(g_MpWeapons); i++) {
-		g_MpWeaponSetRandomFilters[i] = 1;
-	}
-#endif
 }
 
 void func0f1881d4(s32 index)
@@ -532,7 +529,7 @@ void func0f1881d4(s32 index)
 	g_BotConfigsArray[index].difficulty = BOTDIFF_DISABLED;
 }
 
-void mpInit(void)
+void mpInit(bool resetplayers)
 {
 	s32 i;
 	s32 j;
@@ -565,8 +562,10 @@ void mpInit(void)
 
 	strcpy(g_MpSetup.name, "");
 
-	for (i = 0; i < ARRAYCOUNT(g_PlayerConfigsArray); i++) {
-		mpPlayerSetDefaults(i, false);
+	if (resetplayers) {
+		for (i = 0; i < ARRAYCOUNT(g_PlayerConfigsArray); i++) {
+			mpPlayerSetDefaults(i, false);
+		}
 	}
 
 	for (i = 0; i < MAX_BOTS; i++) {
@@ -599,6 +598,16 @@ void mpInit(void)
 	}
 
 	g_MpSetup.chrslots = 0;
+
+	for (i = 0; i < ARRAYCOUNT(g_Menus); i++) {
+		g_Menus[i].mpsetup.showpresets = 1;
+	}
+
+#ifndef PLATFORM_N64
+	for (i = 0; i < ARRAYCOUNT(g_MpWeapons); i++) {
+		g_MpWeaponSetRandomFilters[i] = 1;
+	}
+#endif
 }
 
 #if VERSION >= VERSION_PAL_BETA
@@ -3532,7 +3541,7 @@ void mpplayerfileSaveWad(s32 playernum, struct savebuffer *buffer)
 	s32 j;
 	u32 stack;
 
-	func0f0d55a4(buffer, g_PlayerConfigsArray[playernum].base.name);
+	savebufferWriteString(buffer, g_PlayerConfigsArray[playernum].base.name);
 
 	if (g_PlayerConfigsArray[playernum].time > 0x0fffffff) { // over 3106 days
 		g_PlayerConfigsArray[playernum].time = 0x0fffffff;
@@ -3683,8 +3692,6 @@ s32 mpplayerfileSave(s32 playernum, s32 device, s32 fileid, u16 deviceserial)
 	if (device >= 0) {
 		savebufferClear(&buffer);
 		mpplayerfileSaveWad(playernum, &buffer);
-		func0f0d54c4(&buffer);
-
 		var80075bd0[2] = true;
 
 		ret = pakSaveAtGuid(device, fileid, PAKFILETYPE_MPPLAYER, buffer.bytes, &newfileid, 0);
@@ -3717,8 +3724,6 @@ s32 mpplayerfileLoad(s32 playernum, s32 device, s32 fileid, u16 deviceserial)
 			g_PlayerConfigsArray[playernum].fileguid.deviceserial = deviceserial;
 
 			mpplayerfileLoadWad(playernum, &buffer, 1);
-			func0f0d54c4(&buffer);
-
 			g_PlayerConfigsArray[playernum].handicap = 0x80;
 			return 0;
 		}
@@ -3912,21 +3917,54 @@ void mp0f18dec4(s32 slot)
 #endif
 }
 
-void mpsetupfileLoadWad(struct savebuffer *buffer)
+static u64 packWeaponSetRandomFilters()
+{
+	u64 packed = 0;
+	for (int i = 0; i < NUM_MPWEAPONS; ++i) {
+		packed |= g_MpWeaponSetRandomFilters[i] != 0 ? (1LL << i) : 0;
+	}
+
+	return packed;
+}
+
+static void unpackWeaponSetRandomFilters(u64 packed)
+{
+	for (int i = 0; i < NUM_MPWEAPONS; ++i) {
+		g_MpWeaponSetRandomFilters[i] = (packed & (1LL << i)) != 0;
+	}
+}
+
+void mpsetupfileLoadWad(struct savebuffer *buffer, u8 version)
 {
 	s32 i;
 	s32 j;
 
-	savebufferReadString(buffer, g_MpSetup.name, false);
+	if (version > 0) {
+		savebufferReadString_ext(buffer, g_MpSetup.name, false, MPSETUP_MAXNAME + 1);
+	}
+	else {
+		savebufferReadString(buffer, g_MpSetup.name, false);
+	}
+
 	savebufferReadBits(buffer, 4);
 
 	g_MpSetup.stagenum = savebufferReadBits(buffer, 7);
 	g_MpSetup.scenario = savebufferReadBits(buffer, 3);
 
-	scenarioInit();
-	scenarioReadSave(buffer);
+	// version == 0 means we're only reading to convert, so no actions are needed
+	if (version > 0) {
+		scenarioInit();
+	}
+
+	scenarioReadSave(buffer, version);
+
+	if (version > 0) {
+		g_MpSetup.options = savebufferReadBits(buffer, 32);
+	}
+	else {
+		g_MpSetup.options = savebufferReadBits(buffer, 21);
+	}
 
-	g_MpSetup.options = savebufferReadBits(buffer, 21);
 	g_MpSetup.chrslots &= 0x000f;
 
 	for (i = 0; i < MAX_BOTS; i++) {
@@ -3947,13 +3985,20 @@ void mpsetupfileLoadWad(struct savebuffer *buffer)
 		g_BotConfigsArray[i].base.team = savebufferReadBits(buffer, 3);
 	}
 
-	mpGenerateBotNames();
+	if (version > 0) {
+		mpGenerateBotNames();
+	}
 
 	for (i = 0; i < ARRAYCOUNT(g_MpSetup.weapons); i++) {
 		g_MpSetup.weapons[i] = savebufferReadBits(buffer, 7);
 	}
 
-	func0f18913c();
+	if (version > 0) {
+		u64 wpnRndPacked = savebufferReadBits(buffer, 64);
+		unpackWeaponSetRandomFilters(wpnRndPacked);
+	}
+
+	g_MpWeaponSetNum = savebufferReadBits(buffer, 8);
 
 	g_MpSetup.timelimit = savebufferReadBits(buffer, 6);
 	g_MpSetup.scorelimit = savebufferReadBits(buffer, 7);
@@ -3972,7 +4017,7 @@ void mpsetupfileSaveWad(struct savebuffer *buffer)
 	s32 mpbodynum;
 	s32 i;
 
-	func0f0d55a4(buffer, g_MpSetup.name);
+	savebufferWriteString_ext(buffer, g_MpSetup.name, MPSETUP_MAXNAME + 1);
 
 	for (i = 0; i < MAX_BOTS; i++) {
 		if (g_MpSetup.chrslots & (1 << (i + 4))) {
@@ -3986,7 +4031,7 @@ void mpsetupfileSaveWad(struct savebuffer *buffer)
 
 	scenarioWriteSave(buffer);
 
-	savebufferOr(buffer, g_MpSetup.options, 21);
+	savebufferOr(buffer, g_MpSetup.options, 32);
 
 	for (i = 0; i < MAX_BOTS; i++) {
 		savebufferOr(buffer, g_BotConfigsArray[i].type, 5);
@@ -4019,6 +4064,10 @@ void mpsetupfileSaveWad(struct savebuffer *buffer)
 		savebufferOr(buffer, g_MpSetup.weapons[i], 7);
 	}
 
+	u64 wpnRndPacked = packWeaponSetRandomFilters();
+	savebufferOr(buffer, wpnRndPacked, 64);
+	savebufferOr(buffer, g_MpWeaponSetNum, 8);
+
 	savebufferOr(buffer, g_MpSetup.timelimit, 6);
 	savebufferOr(buffer, g_MpSetup.scorelimit, 7);
 	savebufferOr(buffer, g_MpSetup.teamscorelimit, 9);
@@ -4032,69 +4081,15 @@ void mpsetupfileGetOverview(char *arg0, char *filename, u16 *numsims, u16 *stage
 {
 	struct savebuffer buffer;
 
-	savebufferWriteData(&buffer, arg0, 15);
+	savebufferWriteData(&buffer, arg0, 22);
 
-	savebufferReadString(&buffer, filename, 0);
+	savebufferReadString_ext(&buffer, filename, 0, MPSETUP_MAXNAME+1);
 
 	*numsims = savebufferReadBits(&buffer, 4);
 	*stagenum = savebufferReadBits(&buffer, 7);
 	*scenarionum = savebufferReadBits(&buffer, 3);
 }
 
-s32 mpsetupfileSave(s32 device, s32 fileid, u16 deviceserial)
-{
-	s32 ret;
-	s32 newfileid;
-	struct savebuffer buffer;
-
-	if (device >= 0) {
-		savebufferClear(&buffer);
-		mpsetupfileSaveWad(&buffer);
-		func0f0d54c4(&buffer);
-
-		ret = pakSaveAtGuid(device, fileid, PAKFILETYPE_MPSETUP, buffer.bytes, &newfileid, 0);
-		var80075bd0[1] = true;
-
-		if (ret == 0) {
-			g_MpSetup.fileguid.fileid = newfileid;
-			g_MpSetup.fileguid.deviceserial = deviceserial;
-			return 0;
-		}
-
-		g_FilemgrLastPakError = ret;
-		return -1;
-	}
-
-	return -1;
-}
-
-s32 mpsetupfileLoad(s32 device, s32 fileid, u16 deviceserial)
-{
-	s32 ret;
-	struct savebuffer buffer;
-
-	if (device >= 0) {
-		savebufferClear(&buffer);
-		ret = pakReadBodyAtGuid(device, fileid, buffer.bytes, 0);
-
-		if (ret == 0) {
-			g_MpSetup.fileguid.fileid = fileid;
-			g_MpSetup.fileguid.deviceserial = deviceserial;
-
-			mpsetupfileLoadWad(&buffer);
-			func0f0d54c4(&buffer);
-
-			return 0;
-		}
-
-		g_FilemgrLastPakError = ret;
-
-		return -1;
-	}
-
-	return -1;
-}
-
 void func0f18e558(void)
 {
 	s32 i;
diff --git a/src/game/mplayer/scenarios.c b/src/game/mplayer/scenarios.c
index 60a4f85f5..b9ea325b3 100644
--- a/src/game/mplayer/scenarios.c
+++ b/src/game/mplayer/scenarios.c
@@ -70,7 +70,7 @@ struct mpscenario {
 	bool (*isroomhighlightedfunc)(RoomNum room);
 	void (*highlightroomfunc)(RoomNum room, s32 *arg1, s32 *arg2, s32 *arg3);
 	void *unk3c; // never hooked into nor fired
-	void (*readsavefunc)(struct savebuffer *buffer);
+	void (*readsavefunc)(struct savebuffer *buffer, u8 version);
 	void (*writesavefunc)(struct savebuffer *buffer);
 };
 
@@ -416,12 +416,13 @@ MenuItemHandlerResult menuhandlerMpOpenOptions(s32 operation, struct menuitem *i
  *
  * Used by KOH to read the mphilltime.
  */
-void scenarioReadSave(struct savebuffer *buffer)
+void scenarioReadSave(struct savebuffer *buffer, u8 version)
 {
 	if (g_MpScenarios[g_MpSetup.scenario].readsavefunc) {
-		g_MpScenarios[g_MpSetup.scenario].readsavefunc(buffer);
+		g_MpScenarios[g_MpSetup.scenario].readsavefunc(buffer, version);
 	} else {
-		savebufferReadBits(buffer, 8);
+		u8 sz = version > 0 ? 32 : 8;
+		savebufferReadBits(buffer, sz);
 	}
 }
 
@@ -438,7 +439,7 @@ void scenarioWriteSave(struct savebuffer *buffer)
 	if (g_MpScenarios[g_MpSetup.scenario].writesavefunc) {
 		g_MpScenarios[g_MpSetup.scenario].writesavefunc(buffer);
 	} else {
-		savebufferOr(buffer, 0, 8);
+		savebufferOr(buffer, 0, 32);
 	}
 }
 
diff --git a/src/game/mplayer/scenarios/kingofthehill.inc b/src/game/mplayer/scenarios/kingofthehill.inc
index fbf8eb8ee..6c8f41aa6 100644
--- a/src/game/mplayer/scenarios/kingofthehill.inc
+++ b/src/game/mplayer/scenarios/kingofthehill.inc
@@ -149,14 +149,15 @@ struct menudialogdef g_KohOptionsMenuDialog = {
 	&g_ExtGameOptionsMenuDialog,
 };
 
-void kohReadSave(struct savebuffer *buffer)
+void kohReadSave(struct savebuffer *buffer, u8 version)
 {
-	g_Vars.mphilltime = savebufferReadBits(buffer, 8);
+	u8 sz = version > 0 ? 32 : 8;
+	g_Vars.mphilltime = savebufferReadBits(buffer, sz);
 }
 
 void kohWriteSave(struct savebuffer *buffer)
 {
-	savebufferOr(buffer, g_Vars.mphilltime, 8);
+	savebufferOr(buffer, g_Vars.mphilltime, 32);
 }
 
 void kohInit(void)
diff --git a/src/game/mplayer/setup.c b/src/game/mplayer/setup.c
index 1362c9527..0c138365e 100644
--- a/src/game/mplayer/setup.c
+++ b/src/game/mplayer/setup.c
@@ -20,9 +20,13 @@
 #include "lib/vi.h"
 #include "lib/rng.h"
 #include "lib/str.h"
+#include "lib/joy.h"
 #include "data.h"
 #include "gbiex.h"
 #include "types.h"
+#include "system.h"
+#include "input.h"
+#include "mpsetups.h"
 
 struct menuitem g_MpCharacterMenuItems[];
 struct menudialogdef g_MpAddSimulantMenuDialog;
@@ -31,6 +35,10 @@ struct menudialogdef g_MpChangeTeamNameMenuDialog;
 struct menudialogdef g_MpEditSimulantMenuDialog;
 struct menudialogdef g_MpSaveSetupNameMenuDialog;
 
+extern struct menudialogdef g_ManageSettingsDialog;
+extern struct menudialogdef g_FilemgrFileSavedMenuDialog;
+extern struct menudialogdef g_FilemgrErrorMenuDialog;
+
 #ifndef PLATFORM_N64
 extern s32 g_MpWeaponSetNum;
 #endif
@@ -451,9 +459,11 @@ MenuItemHandlerResult menuhandlerMpConfirmSaveChr(s32 operation, struct menuitem
 	return 0;
 }
 
+extern struct menudialogdef g_StatusErrorDialog;
 MenuItemHandlerResult menuhandlerMpSetupName(s32 operation, struct menuitem *item, union handlerdata *data)
 {
 	char *name = data->keyboard.string;
+	s32 err;
 
 	switch (operation) {
 	case MENUOP_GETTEXT:
@@ -463,7 +473,14 @@ MenuItemHandlerResult menuhandlerMpSetupName(s32 operation, struct menuitem *ite
 		strcpy(g_MpSetup.name, name);
 		break;
 	case MENUOP_SET:
-		filemgrPushSelectLocationDialog(7, FILETYPE_MPSETUP);
+		err = mpsetupSaveSetup(g_MpSetupFile.numsetups, true);
+		if (!err) {
+			menuPushDialog(&g_FilemgrFileSavedMenuDialog);
+			g_MpCurrentSetup = g_MpSetupFile.numsetups - 1;
+		}
+		else {
+			menuPushDialog(&g_StatusErrorDialog);
+		}
 		break;
 	}
 
@@ -474,7 +491,8 @@ MenuItemHandlerResult menuhandlerMpSaveSetupOverwrite(s32 operation, struct menu
 {
 	if (operation == MENUOP_SET) {
 		menuPopDialog();
-		filemgrSaveOrLoad(&g_MpSetup.fileguid, FILEOP_SAVE_MPSETUP, 0);
+		mpsetupSaveSetup(g_MpCurrentSetup, true);
+		menuPushDialog(&g_FilemgrFileSavedMenuDialog);
 	}
 
 	return 0;
@@ -1075,18 +1093,18 @@ struct menuitem g_MpSaveSetupNameMenuItems[] = {
 	{
 		MENUITEMTYPE_LABEL,
 		0,
-		MENUITEMFLAG_LESSLEFTPADDING,
-		L_MPMENU_189, // "Enter a name for your game setup file:"
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_LESSLEFTPADDING,
+		(uintptr_t)"Enter the setup name:\n",
 		0,
 		NULL,
 	},
 #endif
 	{
 		MENUITEMTYPE_KEYBOARD,
+		MPSETUP_MAXNAME,
 		0,
 		0,
-		0,
-		0,
+		1,
 		menuhandlerMpSetupName,
 	},
 	{ MENUITEMTYPE_END },
@@ -1112,10 +1130,10 @@ struct menuitem g_MpSaveSetupExistsMenuItems[] = {
 		NULL,
 	},
 	{
-		MENUITEMTYPE_LABEL,
+		MENUITEMTYPE_SEPARATOR,
+		0,
+		0,
 		0,
-		MENUITEMFLAG_LESSLEFTPADDING | MENUITEMFLAG_SELECTABLE_CENTRE | MENUITEMFLAG_SMALLFONT,
-		(uintptr_t)&filemgrMenuTextDeviceName,
 		0,
 		NULL,
 	},
@@ -1123,8 +1141,16 @@ struct menuitem g_MpSaveSetupExistsMenuItems[] = {
 	{
 		MENUITEMTYPE_LABEL,
 		0,
-		MENUITEMFLAG_LESSLEFTPADDING,
-		L_MPMENU_184, // "Do you want to save over your original game file?"
+		MENUITEMFLAG_LESSLEFTPADDING | MENUITEMFLAG_LITERAL_TEXT,
+		(uintptr_t)"Save over your\noriginal setup?\n",
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_SEPARATOR,
+		0,
+		0,
+		0,
 		0,
 		NULL,
 	},
@@ -2232,36 +2258,31 @@ MenuItemHandlerResult mpPlayerNameMenuHandler(s32 operation, struct menuitem *it
 
 MenuItemHandlerResult mpLoadSettingsMenuHandler(s32 operation, struct menuitem *item, union handlerdata *data)
 {
+	u8 presets = g_Menus[g_MpPlayerNum].mpsetup.showpresets;
+	s32 numpresets = mpGetNumUnlockedPresets()*presets;
+
 	switch (operation) {
 	case MENUOP_GETOPTIONCOUNT:
-		data->list.value = mpGetNumUnlockedPresets();
-
-		if (g_FileLists[1] != NULL) {
-			data->list.value += g_FileLists[1]->numfiles;
-		}
+		data->list.value = numpresets + g_MpSetupFile.numsetups;
 		break;
 	case MENUOP_GETOPTIONTEXT:
-		if (data->list.value < mpGetNumUnlockedPresets()) {
+		if (presets && data->list.value < mpGetNumUnlockedPresets()) {
 			return (uintptr_t)mpGetPresetNameBySlot(data->list.value);
 		}
-		if (g_FileLists[1] != NULL) {
-			func0f0d564c(g_FileLists[1]->files[data->list.value - mpGetNumUnlockedPresets()].name, g_StringPointer, false);
+		if (g_MpSetupFile.numsetups > 0) {
+			struct setupblock *block = &g_MpSetupFile.setups[data->list.value - numpresets];
+			func0f0d564c_ext(block->bytes, g_StringPointer, false, MPSETUP_MAXNAME+1);
 			return (uintptr_t)g_StringPointer;
 		}
 		break;
 	case MENUOP_SET:
 		mpCloseDialogsForNewSetup();
 
-		if (data->list.value < mpGetNumUnlockedPresets()) {
+		if (presets && data->list.value < mpGetNumUnlockedPresets()) {
 			mp0f18dec4(data->list.value);
-		} else if (g_FileLists[1] != NULL) {
-			struct filelistfile *file = &g_FileLists[1]->files[data->list.value - mpGetNumUnlockedPresets()];
-			struct fileguid guid;
-
-			guid.fileid = file->fileid;
-			guid.deviceserial = file->deviceserial;
-
-			filemgrSaveOrLoad(&guid, FILEOP_LOAD_MPSETUP, 0);
+			g_MpCurrentSetup = -1;
+		} else {
+			mpsetupLoadSetup(data->list.value - numpresets);
 		}
 
 		if (item->param == 1) {
@@ -2276,36 +2297,21 @@ MenuItemHandlerResult mpLoadSettingsMenuHandler(s32 operation, struct menuitem *
 		data->list.value = 0xfffff;
 		break;
 	case MENUOP_GETOPTGROUPCOUNT:
-		data->list.value = 1;
-
-		if (g_FileLists[1] != NULL) {
-			data->list.value += g_FileLists[1]->numdevices;
-		}
+		data->list.value = presets ? 2 : 1;
 		break;
 	case MENUOP_GETOPTGROUPTEXT:
-		if (data->list.value == 0) {
+		if (presets && data->list.value == 0) {
 			return (uintptr_t)langGet(L_MPMENU_141); // "Presets"
 		}
-		if (g_FileLists[1] != NULL) {
-			return (uintptr_t)filemgrGetDeviceNameOrStartIndex(1, operation, data->list.value - 1);
-		}
-		break;
+		return (uintptr_t)"Custom";
 	case MENUOP_GETGROUPSTARTINDEX:
-		if (data->list.value == 0) {
-			data->list.groupstartindex = 0;
-		} else {
-			data->list.groupstartindex = mpGetNumUnlockedPresets();
-
-			if (g_FileLists[1] != NULL) {
-				data->list.groupstartindex += filemgrGetDeviceNameOrStartIndex(1, operation, data->list.value - 1);
-			}
-		}
+		data->list.groupstartindex = data->list.value == 0 ? 0 : numpresets;
 		break;
 	case MENUOP_LISTITEMFOCUS:
-		if (data->list.value < mpGetNumUnlockedPresets()) {
+		if (presets && data->list.value < mpGetNumUnlockedPresets()) {
 			g_Menus[g_MpPlayerNum].mpsetup.slotindex = 0xffff;
 		} else {
-			g_Menus[g_MpPlayerNum].mpsetup.slotindex = data->list.value - mpGetNumUnlockedPresets();
+			g_Menus[g_MpPlayerNum].mpsetup.slotindex = data->list.value - numpresets;
 		}
 		break;
 	}
@@ -2315,21 +2321,21 @@ MenuItemHandlerResult mpLoadSettingsMenuHandler(s32 operation, struct menuitem *
 
 char *mpMenuTextMpconfigMarquee(struct menuitem *item)
 {
-	char filename[20];
+	char filename[MPSETUP_MAXNAME+1];
 	u16 numsims;
 	u16 stagenum;
 	u16 scenarionum;
 	s32 arenanum;
 	s32 i;
 
-	if (g_Menus[g_MpPlayerNum].mpsetup.slotindex < 0xffff && g_FileLists[1]) {
+	if (g_Menus[g_MpPlayerNum].mpsetup.slotindex < 0xffff && g_MpSetupFile.numsetups > 0) {
 #if VERSION >= VERSION_NTSC_1_0
 		arenanum = -1;
 #else
 		arenanum = 0;
 #endif
 
-		mpsetupfileGetOverview(g_FileLists[1]->files[g_Menus[g_MpPlayerNum].mpsetup.slotindex].name,
+		mpsetupfileGetOverview(g_MpSetupFile.setups[g_Menus[g_MpPlayerNum].mpsetup.slotindex].bytes,
 				filename, &numsims, &stagenum, &scenarionum);
 
 		for (i = 0; i < ARRAYCOUNT(g_MpArenas); i++) {
@@ -2558,6 +2564,16 @@ MenuDialogHandlerResult menudialogMpSimulant(s32 operation, struct menudialogdef
 	return false;
 }
 
+MenuDialogHandlerResult mpLoadSettingsDialogHandler(s32 operation, struct menudialogdef *dialogdef, union handlerdata *data)
+{
+	if (operation == MENUOP_TICK) {
+		if (menuAltAnyPressed(g_MpPlayerNum)) {
+			u8 presets = g_Menus[g_MpPlayerNum].mpsetup.showpresets;
+			g_Menus[g_MpPlayerNum].mpsetup.showpresets = 1 - presets;
+		}
+	}
+}
+
 struct menuitem g_MpCharacterMenuItems[] = {
 	{
 		MENUITEMTYPE_LABEL,
@@ -2633,6 +2649,22 @@ struct menuitem g_MpLoadSettingsMenuItems[] = {
 		0,
 		NULL,
 	},
+	{
+		MENUITEMTYPE_SEPARATOR,
+		0,
+		0,
+		0,
+		0,
+		NULL,
+	},
+	{
+		MENUITEMTYPE_LABEL,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_LESSLEFTPADDING | MENUITEMFLAG_SMALLFONT,
+		(uintptr_t)"Menu Alt: Toggle Presets\n",
+		0,
+		NULL,
+	},
 	{ MENUITEMTYPE_END },
 };
 
@@ -2640,7 +2672,7 @@ struct menudialogdef g_MpLoadSettingsMenuDialog = {
 	MENUDIALOGTYPE_DEFAULT,
 	L_MPMENU_139, // "Load Game Settings"
 	g_MpLoadSettingsMenuItems,
-	NULL,
+	mpLoadSettingsDialogHandler,
 	MENUDIALOGFLAG_CLOSEONSELECT,
 	NULL,
 };
@@ -5016,13 +5048,10 @@ MenuItemHandlerResult menuhandler0017ef30(s32 operation, struct menuitem *item,
 MenuItemHandlerResult menuhandlerMpSaveSettings(s32 operation, struct menuitem *item, union handlerdata *data)
 {
 	if (operation == MENUOP_SET) {
-		if (g_MpSetup.fileguid.fileid == 0) {
+		if (g_MpCurrentSetup < 0) {
 			menuPushDialog(&g_MpSaveSetupNameMenuDialog);
-		} else {
-#if VERSION >= VERSION_NTSC_1_0
-			filemgrSetDevice1BySerial(g_MpSetup.fileguid.deviceserial);
-#endif
-
+		}
+		else {
 			menuPushDialog(&g_MpSaveSetupExistsMenuDialog);
 		}
 	}
@@ -5365,6 +5394,10 @@ MenuDialogHandlerResult menudialogCombatSimulator(s32 operation, struct menudial
 		g_Vars.waitingtojoin[1] = false;
 		g_Vars.waitingtojoin[2] = false;
 		g_Vars.waitingtojoin[3] = false;
+
+		// load the setup file when entering the Combat Simulator
+		mpsetupCopyAllFromPak();
+		mpsetupLoadCurrentFile();
 	}
 
 	if (g_Menus[g_MpPlayerNum].curdialog
@@ -5757,6 +5790,14 @@ struct menuitem g_MpAdvancedSetupMenuItems[] = {
 		0,
 		NULL,
 	},
+	{
+		MENUITEMTYPE_SELECTABLE,
+		0,
+		MENUITEMFLAG_LITERAL_TEXT | MENUITEMFLAG_SELECTABLE_OPENSDIALOG | MENUITEMFLAG_LOCKABLEMINOR | MENUITEMFLAG_LOCKABLEMAJOR,
+		(uintptr_t)"Manage Settings\n",
+		0,
+		(void *)&g_ManageSettingsDialog,
+	},
 	{
 		MENUITEMTYPE_SELECTABLE,
 		0,
diff --git a/src/game/player.c b/src/game/player.c
index a0983ef36..cd5fe4137 100644
--- a/src/game/player.c
+++ b/src/game/player.c
@@ -3667,15 +3667,15 @@ void playerTick(bool arg0)
 					f32 mdx, mdy;
 					inputMouseGetScaledDelta(&mdx, &mdy);
 					if (mdx || mdy) {
-						mdx *= 48.f;
-						mdy *= 48.f;
+						mdx *= 0.022f;
+						mdy *= 0.022f;
 						mdx = (mdx < -128.f) ? -128.f : (mdx > 127.f) ? 127.f : mdx;
 						mdy = (mdy < -128.f) ? -128.f : (mdy > 127.f) ? 127.f : mdy;
 						if (g_Vars.currentplayerstats && !optionsGetForwardPitch(g_Vars.currentplayerstats->mpindex)) {
 							mdy = -mdy;
 						}
-						sp178 += mdy * 0.00025f;
-						sp174 -= mdx * 0.00025f;
+						sp178 += mdy;
+						sp174 -= mdx;
 					}
 				}
 #endif
diff --git a/src/game/savebuffer.c b/src/game/savebuffer.c
index f9d4705fd..6a9bcf581 100644
--- a/src/game/savebuffer.c
+++ b/src/game/savebuffer.c
@@ -374,13 +374,13 @@ Gfx *menugfxDrawPlane(Gfx *gdl, s32 x1, s32 y1, s32 x2, s32 y2, u32 colour1, u32
 /**
  * Write the specified amount of bits to the buffer, advancing the internal pointer.
  *
- * numbits is expected to be 32 or less.
+ * numbits is expected to be 64 or less.
  *
  * This function only sets bits to on and does not unset them.
  */
-void savebufferOr(struct savebuffer *buffer, u32 value, s32 numbits)
+void savebufferOr(struct savebuffer *buffer, u64 value, s32 numbits)
 {
-	u32 bit = 1 << (numbits - 1);
+	u64 bit = 1LL << (numbits - 1LL);
 
 	for (; bit; bit >>= 1) {
 		if (bit & value) {
@@ -399,11 +399,11 @@ void savebufferOr(struct savebuffer *buffer, u32 value, s32 numbits)
 /**
  * Write the specified amount of bits to the buffer, advancing the internal pointer.
  *
- * numbits is expected to be 32 or less.
+ * numbits is expected to be 64 or less.
  */
-void savebufferWriteBits(struct savebuffer *buffer, u32 value, s32 numbits, u8 *dst)
+void savebufferWriteBits(struct savebuffer *buffer, u64 value, s32 numbits, u8 *dst)
 {
-	u32 bit = 1 << (numbits - 1);
+	u64 bit = 1LL << (numbits - 1);
 
 	for (; bit; bit >>= 1) {
 		s32 bitindex = buffer->bitpos % 8;
@@ -425,12 +425,12 @@ void savebufferWriteBits(struct savebuffer *buffer, u32 value, s32 numbits, u8 *
  * Read the specified amount of bits from the buffer and return it as an
  * integer, advancing the internal pointer.
  *
- * numbits is expected to be 32 or less.
+ * numbits is expected to be 64 or less.
  */
-u32 savebufferReadBits(struct savebuffer *buffer, s32 numbits)
+u64 savebufferReadBits(struct savebuffer *buffer, s32 numbits)
 {
-	u32 bit = 1 << (numbits - 1);
-	u32 value = 0;
+	u64 bit = 1LL << (numbits - 1);
+	u64 value = 0;
 
 	for (; bit; bit >>= 1) {
 		s32 bitindex = buffer->bitpos % 8;
@@ -470,24 +470,17 @@ void savebufferWriteData(struct savebuffer *buffer, u8 *data, u8 len)
 	}
 }
 
-void func0f0d54c4(struct savebuffer *buffer)
-{
-	s32 tmp = buffer->bitpos;
-
-	if (tmp / 8 && buffer->bitpos);
-}
-
 /**
  * Read a zero-terminated string from the buffer and move the buffer's internal
  * pointer past the end of the string.
  */
-void savebufferReadString(struct savebuffer *buffer, char *dst, bool addlinebreak)
+void savebufferReadString_ext(struct savebuffer *buffer, char *dst, bool addlinebreak, u8 len)
 {
 	bool foundnull = false;
 	s32 index = 0;
 	s32 i;
 
-	for (i = 0; i < 10; i++) {
+	for (i = 0; i < len; i++) {
 		s32 byte = savebufferReadBits(buffer, 8);
 
 		if (!foundnull) {
@@ -509,12 +502,17 @@ void savebufferReadString(struct savebuffer *buffer, char *dst, bool addlinebrea
 	dst[index] = '\0';
 }
 
-void func0f0d55a4(struct savebuffer *buffer, char *src)
+void savebufferReadString(struct savebuffer *buffer, char *dst, bool addlinebreak)
+{
+	savebufferReadString_ext(buffer, dst, addlinebreak, 10);
+}
+
+void savebufferWriteString_ext(struct savebuffer *buffer, char *src, u8 len)
 {
 	bool done = false;
 	s32 i;
 
-	for (i = 0; i < 10; i++) {
+	for (i = 0; i < len; i++) {
 		if (!done) {
 			if (src[i] == '\0') {
 				done = true;
@@ -532,12 +530,22 @@ void func0f0d55a4(struct savebuffer *buffer, char *src)
 	}
 }
 
-void func0f0d564c(u8 *data, char *dst, bool addlinebreak)
+void savebufferWriteString(struct savebuffer *buffer, char *src)
+{
+	savebufferWriteString_ext(buffer, src, 10);
+}
+
+void func0f0d564c_ext(u8 *data, char *dst, bool addlinebreak, u8 len)
 {
 	struct savebuffer buffer;
 
-	savebufferWriteData(&buffer, data, 10);
-	savebufferReadString(&buffer, dst, addlinebreak);
+	savebufferWriteData(&buffer, data, len);
+	savebufferReadString_ext(&buffer, dst, addlinebreak, len);
+}
+
+void func0f0d564c(u8 *data, char *dst, bool addlinebreak)
+{
+	func0f0d564c_ext(data, dst, addlinebreak, 10);
 }
 
 #if VERSION >= VERSION_NTSC_1_0
diff --git a/src/game/sky.c b/src/game/sky.c
index e610cad83..f2b276f10 100644
--- a/src/game/sky.c
+++ b/src/game/sky.c
@@ -17,7 +17,7 @@
 #ifndef PLATFORM_N64
 #include "video.h"
 #include "game/gfxmemory.h"
-#include "game/game_13c510.h"
+#include "game/artifact.h"
 #include "game/player.h"
 #endif
 
@@ -2518,11 +2518,11 @@ void skyCreateSunArtifact(struct artifact *artifact, s32 x, s32 y)
 		sunpos.x = env->suns[i].pos[0];
 		sunpos.y = env->suns[i].pos[1];
 		sunpos.z = env->suns[i].pos[2];
-		artifact->unk02 = artifactTestLos(&sunpos, &zero, x, y) * 0xfffc;
+		artifact->visiblelos = artifactTestLos(&sunpos, &zero, x, y) * 0xfffc;
 #endif
-		artifact->unk08 = &g_ZbufPtr1[(s32)camGetScreenWidth() * y + x];
-		artifact->unk0c.u16_2 = x;
-		artifact->unk0c.u16_1 = y;
+		artifact->zbufptr = &g_ZbufPtr1[(s32)camGetScreenWidth() * y + x];
+		artifact->screenx = x;
+		artifact->screeny = y;
 		artifact->type = ARTIFACTTYPE_CIRCLE;
 	}
 }
@@ -2533,7 +2533,7 @@ f32 skyGetArtifactGroupIntensityFrac(struct artifact *artifacts)
 	s32 i;
 
 	for (i = 0; i < 8; i++) {
-		if (artifacts[i].type == ARTIFACTTYPE_CIRCLE && artifacts[i].unk02 == 0xfffc) {
+		if (artifacts[i].type == ARTIFACTTYPE_CIRCLE && artifacts[i].actualdepth == 0xfffc) {
 			sum += 0.125f;
 		}
 	}
diff --git a/src/game/zbuf.c b/src/game/zbuf.c
index cf1b62140..d64f79f28 100644
--- a/src/game/zbuf.c
+++ b/src/game/zbuf.c
@@ -177,23 +177,31 @@ u16 *zbufGetArtifactsCfb(s32 index)
 	return addr;
 }
 
-Gfx *zbufDrawArtifactsOffscreen(Gfx *gdl)
+/**
+ * This method is designed to save artifact depths
+ * prior to drawing the hands and weapon on-screen
+ * since drawing them requires clearing the zbuffer
+ * to avoid clipping the gun model on floors and walls.
+ *
+ * TODO: determine if this works with the PC port
+ */
+Gfx *zbufSaveArtifactDepths(Gfx *gdl)
 {
 	struct artifact *artifacts = schedGetWriteArtifacts();
 	u32 stack;
-	u16 *sp4c = g_ZbufPtr1;
-	u32 s4 = 0;
-	u16 *sp44;
-	u16 *s2;
-	u16 *image;
+	u16 *zbuf = g_ZbufPtr1;
+	u32 numsamples = 0;
+	u16 *samples;
+	u16 *thissample;
+	u16 *zbufrow;
 	s32 i;
 
 	viGetBackBuffer();
-	sp44 = zbufGetArtifactsCfb(g_SchedWriteArtifactsIndex);
+	samples = zbufGetArtifactsCfb(g_SchedWriteArtifactsIndex);
 	g_SchedSpecialArtifactIndexes[g_SchedWriteArtifactsIndex] = 1;
 
 	gDPPipeSync(gdl++);
-	gDPSetColorImage(gdl++, G_IM_FMT_RGBA, G_IM_SIZ_16b, viGetBufWidth(), OS_PHYSICAL_TO_K0(sp44));
+	gDPSetColorImage(gdl++, G_IM_FMT_RGBA, G_IM_SIZ_16b, viGetBufWidth(), OS_PHYSICAL_TO_K0(samples));
 	gDPSetScissor(gdl++, G_SC_NON_INTERLACE, 0, 0, SCREEN_320, SCREEN_240);
 	gDPSetCycleType(gdl++, G_CYC_COPY);
 	gDPSetTile(gdl++, G_IM_FMT_RGBA, G_IM_SIZ_16b, 0, 0x0000, 5, 0, G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMASK, G_TX_NOLOD, G_TX_NOMIRROR | G_TX_WRAP, G_TX_NOMASK, G_TX_NOLOD);
@@ -220,24 +228,24 @@ Gfx *zbufDrawArtifactsOffscreen(Gfx *gdl)
 		if (1);
 
 		if (artifacts[i].type != ARTIFACTTYPE_FREE) {
-			s2 = &sp44[s4];
-			image = &sp4c[artifacts[i].unk0c.u16_1 * viGetWidth()];
+			thissample = &samples[numsamples];
+			zbufrow = &zbuf[artifacts[i].screeny * viGetWidth()];
 
 			gDPPipeSync(gdl++);
-			gDPSetTextureImage(gdl++, G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_320, image);
+			gDPSetTextureImage(gdl++, G_IM_FMT_RGBA, G_IM_SIZ_16b, SCREEN_320, zbufrow);
 			gDPLoadSync(gdl++);
 			gDPLoadBlock(gdl++, 5, 0, 0, viGetWidth() - 1, 0);
 			gDPPipeSync(gdl++);
 
 			gSPTextureRectangle(gdl++,
-					s4 << 2, 0,
-					(s4 + 3) << 2, 0,
-					G_TX_RENDERTILE, (artifacts[i].unk0c.u16_2 * 32) + 16, 0x0010, 0x1000, 0);
+					numsamples << 2, 0,
+					(numsamples + 3) << 2, 0,
+					G_TX_RENDERTILE, (artifacts[i].screenx * 32) + 16, 0x0010, 0x1000, 0);
 
-			artifacts[i].unk0c.u16p = s2;
-			s4++;
+			artifacts[i].depthptr = thissample;
+			numsamples++;
 
-			if (s2);
+			if (thissample);
 		}
 	}
 
@@ -251,7 +259,7 @@ Gfx *zbufDrawArtifactsOffscreen(Gfx *gdl)
 	gDPSetTexturePersp(gdl++, G_TP_PERSP);
 	gDPSetColorDither(gdl++, G_CD_BAYER);
 
-	if (sp44);
+	if (samples);
 
 	return gdl;
 }
diff --git a/src/include/constants.h b/src/include/constants.h
index 8cfe58c73..5759a8eeb 100644
--- a/src/include/constants.h
+++ b/src/include/constants.h
@@ -4757,6 +4757,10 @@ enum weaponnum {
 
 #define EXTRA_SLEEP_TIME 1000LL // 100us
 
+#define MPSETUP_MAXSETUPS 128
+#define MPSETUP_MAXNAME 17
+#define MPSETUP_BLOCKSIZE 80
+
 #endif
 
 #endif
diff --git a/src/include/data.h b/src/include/data.h
index 0bc0f12b3..f576e606b 100644
--- a/src/include/data.h
+++ b/src/include/data.h
@@ -562,6 +562,9 @@ extern s32 g_FileAutoSelect;
 extern u8 g_MpWeaponSetRandomFilters[NUM_MPWEAPONS];
 extern s32 g_MpWeaponRandomFilterNum;
 
+extern struct mpsetupfile g_MpSetupFile;
+extern s16 g_MpCurrentSetup;
+
 #define PLAYER_EXTCFG() g_PlayerExtCfg[g_Vars.currentplayerstats->mpindex & 3]
 #define PLAYER_DEFAULT_FOV (PLAYER_EXTCFG().fovy)
 
diff --git a/src/include/game/game_13c510.h b/src/include/game/artifact.h
similarity index 82%
rename from src/include/game/game_13c510.h
rename to src/include/game/artifact.h
index d8ee2f6dd..9feae2a18 100644
--- a/src/include/game/game_13c510.h
+++ b/src/include/game/artifact.h
@@ -6,10 +6,10 @@
 
 void artifactsClear(void);
 void artifactsTick(void);
-u16 func0f13c574(f32 arg0);
-s32 func0f13c710(f32 arg0);
+u16 floatToN64Depth(f32 arg0);
+s32 artifactsFloatToInt(f32 arg0);
 void artifactsCalculateGlaresForRoom(s32 roomnum);
-u8 func0f13d3c4(u8 arg0, u8 arg1);
+u8 artifactsClamp(u8 arg0, u8 arg1);
 Gfx *artifactsConfigureForGlares(Gfx *gdl);
 Gfx *artifactsUnconfigureForGlares(Gfx *gdl);
 Gfx *artifactsRenderGlaresForRoom(Gfx *gdl, s32 roomnum);
diff --git a/src/include/game/menu.h b/src/include/game/menu.h
index 419fb659e..37bdbc5e5 100644
--- a/src/include/game/menu.h
+++ b/src/include/game/menu.h
@@ -113,6 +113,10 @@ MenuItemHandlerResult menuhandlerRepairPak(s32 operation, struct menuitem *item,
 MenuItemHandlerResult menuhandlerRetrySavePak(s32 operation, struct menuitem *item, union handlerdata *data);
 MenuItemHandlerResult menuhandlerWarnRepairPak(s32 operation, struct menuitem *item, union handlerdata *data);
 
+s32 menuAlt1Pressed(s32 playerNum);
+s32 menuAlt2Pressed(s32 playerNum);
+s32 menuAltAnyPressed(s32 playerNum);
+
 extern const char var7f1b2658[];
 extern const char var7f1b265c[];
 extern const char var7f1b2660[];
diff --git a/src/include/game/mplayer/mplayer.h b/src/include/game/mplayer/mplayer.h
index 3d2591ca7..7510390d5 100644
--- a/src/include/game/mplayer/mplayer.h
+++ b/src/include/game/mplayer/mplayer.h
@@ -13,7 +13,7 @@ void func0f187fbc(s32 playernum);
 void func0f187fec(void);
 void mpPlayerSetDefaults(s32 playernum, bool autonames);
 void func0f1881d4(s32 index);
-void mpInit(void);
+void mpInit(bool resetplayers);
 void mpGetTeamsWithDefaultName(u8 *mask);
 void mpSetTeamNamesToDefault(u8 mask);
 void mpSetDefaultNamesIfEmpty(void);
@@ -118,11 +118,10 @@ s32 mpGetNumUnlockedPresets(void);
 char *mpGetPresetNameBySlot(s32 slot);
 void mpApplyConfig(struct mpconfigfull *mpconfig);
 void mp0f18dec4(s32 arg0);
-void mpsetupfileLoadWad(struct savebuffer *buffer);
+void mpsetupfileLoadWad(struct savebuffer *buffer, u8 version);
 void mpsetupfileSaveWad(struct savebuffer *buffer);
 void mpsetupfileGetOverview(char *arg0, char *filename, u16 *numsims, u16 *stagenum, u16 *scenarionum);
 s32 mpsetupfileSave(s32 device, s32 filenum, u16 deviceserial);
-s32 mpsetupfileLoad(s32 device, s32 filenum, u16 deviceserial);
 void func0f18e558(void);
 struct modeldef *func0f18e57c(s32 index, s32 *headnum);
 
diff --git a/src/include/game/mplayer/scenarios.h b/src/include/game/mplayer/scenarios.h
index a04f0d021..48c7bdcc1 100644
--- a/src/include/game/mplayer/scenarios.h
+++ b/src/include/game/mplayer/scenarios.h
@@ -17,7 +17,7 @@ struct mpscenariooverview {
 extern struct mpscenariooverview g_MpScenarioOverviews[6];
 
 MenuItemHandlerResult menuhandlerMpOpenOptions(s32 operation, struct menuitem *item, union handlerdata *data);
-void scenarioReadSave(struct savebuffer *buffer);
+void scenarioReadSave(struct savebuffer *buffer, u8 version);
 void scenarioWriteSave(struct savebuffer *buffer);
 void scenarioInit(void);
 s32 scenarioNumProps(void);
diff --git a/src/include/game/savebuffer.h b/src/include/game/savebuffer.h
index 9529248ce..28e4b6cb2 100644
--- a/src/include/game/savebuffer.h
+++ b/src/include/game/savebuffer.h
@@ -11,14 +11,16 @@ Gfx *func0f0d49c8(Gfx *gdl);
 Gfx *func0f0d4a3c(Gfx *gdl, s32 arg1);
 Gfx *func0f0d4c80(Gfx *gdl);
 Gfx *menugfxDrawPlane(Gfx *gdl, s32 x1, s32 y1, s32 x2, s32 y2, u32 colour1, u32 colour2, s32 type);
-void savebufferOr(struct savebuffer *buffer, u32 arg1, s32 arg2);
-void savebufferWriteBits(struct savebuffer *buffer, u32 value, s32 numbits, u8 *dst);
-u32 savebufferReadBits(struct savebuffer *buffer, s32 offset);
+void savebufferOr(struct savebuffer *buffer, u64 arg1, s32 arg2);
+void savebufferWriteBits(struct savebuffer *buffer, u64 value, s32 numbits, u8 *dst);
+u64 savebufferReadBits(struct savebuffer *buffer, s32 offset);
 void savebufferClear(struct savebuffer *buffer);
 void savebufferWriteData(struct savebuffer *buffer, u8 *data, u8 len);
-void func0f0d54c4(struct savebuffer *buffer);
+void savebufferReadString_ext(struct savebuffer *buffer, char *dst, bool addlinebreak, u8 len);
 void savebufferReadString(struct savebuffer *buffer, char *dst, bool addlinebreak);
-void func0f0d55a4(struct savebuffer *buffer, char *src);
+void savebufferWriteString_ext(struct savebuffer *buffer, char *src, u8 len);
+void savebufferWriteString(struct savebuffer *buffer, char *src);
+void func0f0d564c_ext(u8 *data, char *dst, bool addlinebreak, u8 len);
 void func0f0d564c(u8 *data, char *dst, bool addlinebreak);
 void func0f0d5690(u8 *dst, char *buffer);
 void savebufferWriteGuid(struct savebuffer *buffer, struct fileguid *guid);
diff --git a/src/include/types.h b/src/include/types.h
index 1da61867b..5f8791717 100644
--- a/src/include/types.h
+++ b/src/include/types.h
@@ -3295,7 +3295,7 @@ struct menuitemdata_dropdown {
 };
 
 struct menuitemdata_keyboard {
-	char string[11];
+	char string[MPSETUP_MAXNAME+1];
 	s8 col;
 	s8 row;
 	u8 capslock : 1;      // Pressed A on caps button
@@ -3494,17 +3494,19 @@ struct audioconfig {
 
 struct artifact {
 	u16 type;
-	u16 unk02;
-	u16 unk04;
-	u16 unk06;
-	u16 *unk08;
+	u16 actualdepth;
+	u16 expecteddepth;
+	u16 *zbufptr;
+#ifndef PLATFORM_N64
+	u16 visiblelos;
+#endif
 	union {
-		u16 *u16p;
+		u16 *depthptr;
 		struct {
-			u16 u16_1;
-			u16 u16_2;
+			u16 screeny;
+			u16 screenx;
 		};
-	} unk0c;
+	};
 	struct light *light;
 };
 
@@ -3774,6 +3776,7 @@ struct menudata_main {
 struct menudata_mpsetup {
 	u32 slotindex;
 	u32 slotcount;
+	u8 showpresets;
 	u32 unke24;
 };
 
@@ -3982,13 +3985,14 @@ struct menu {
 	union {
 		struct menudata_endscreen endscreen;
 		struct menudata_main main;
-		struct menudata_mpsetup mpsetup;
 		struct menudata_mppause mppause;
 		struct menudata_mpend mpend;
 		struct menudata_filemgr fm;
 		struct menudata_main4mb main4mb;
 		struct menudata_training training;
 	};
+
+	struct menudata_mpsetup mpsetup;
 };
 
 struct gamefile {
@@ -4080,7 +4084,7 @@ struct missionconfig {
 };
 
 struct mpsetup {
-	/*0x800acb88*/ char name[12];
+	/*0x800acb88*/ char name[MPSETUP_MAXNAME+1];
 	/*0x800acb94*/ u32 options;
 	/*0x800acb98*/ u8 scenario;
 	/*0x800acb99*/ u8 stagenum;
@@ -4783,8 +4787,8 @@ struct menudata_5d8 {
 struct menudata {
 	/*0x000*/ s32 count;
 	/*0x004*/ s32 root;
-	/*0x008*/ s32 unk008; // also a menuroot constant
-	/*0x00c*/ struct menudialogdef *unk00c;
+	/*0x008*/ s32 prevmenuroot; // also a menuroot constant
+	/*0x00c*/ struct menudialogdef *prevmenudialog;
 	/*0x010*/ f32 unk010;
 	/*0x014*/ u8 bg;
 	/*0x015*/ u8 nextbg;
@@ -4798,7 +4802,7 @@ struct menudata {
 	/*0x5d5*/ u8 usezbuf : 1;
 	/*0x5d5*/ u8 unk5d5_04 : 1;
 	/*0x5d5*/ u8 unk5d5_05 : 1;
-	/*0x5d5*/ u8 unk5d5_06 : 1;
+	/*0x5d5*/ u8 isdialogopen : 1;
 	/*0x5d5*/ u8 unk5d5_07 : 1;
 	/*0x5d5*/ u8 unk5d5_08 : 1;
 	/*0x5d8*/ struct menudata_5d8 unk5d8[12];
@@ -6156,6 +6160,17 @@ struct extplayerconfig {
 	s32 usereloads;
 };
 
+struct setupblock {
+	u8 bytes[MPSETUP_BLOCKSIZE];
+};
+
+struct mpsetupfile {
+	u8 version;
+	u8 defaultsetup;
+	u8 numsetups;
+	struct setupblock setups[MPSETUP_MAXSETUPS];
+};
+
 #endif
 
 #endif
diff --git a/src/lib/sched.c b/src/lib/sched.c
index 266e4cb68..b70906336 100644
--- a/src/lib/sched.c
+++ b/src/lib/sched.c
@@ -540,20 +540,20 @@ void schedUpdatePendingArtifacts(void)
 		struct artifact *artifact = &artifacts[i];
 
 		if (artifact->type != ARTIFACTTYPE_FREE) {
-			u16 *unk08 = artifact->unk08;
-			u16 value08 = unk08[0];
+			u16 *currdepthptr = artifact->zbufptr;
+			u16 currdepth = *currdepthptr;
 
 			if (g_SchedSpecialArtifactIndexes[g_SchedPendingArtifactsIndex] == 1) {
-				u16 *unk0c = artifact->unk0c.u16p;
-				u16 value0c = unk0c[0];
+				u16 *prevdepthptr = artifact->depthptr;
+				u16 prevdepth = *prevdepthptr;
 
-				if (value0c > value08) {
-					artifact->unk02 = value08;
+				if (currdepth < prevdepth) {
+					artifact->actualdepth = currdepth;
 				} else {
-					artifact->unk02 = value0c;
+					artifact->actualdepth = prevdepth;
 				}
 			} else {
-				artifact->unk02 = value08;
+				artifact->actualdepth = currdepth;
 			}
 		}
 	}