diff --git a/include/common_structs.h b/include/common_structs.h
index f15f705c9c..1e56e0e3cf 100644
--- a/include/common_structs.h
+++ b/include/common_structs.h
@@ -2478,15 +2478,6 @@ typedef struct CreditsPairOffset {
     /* 0x02 */ s16 offset;
 } CreditsPairOffset; // size = 0x4
 
-typedef struct GameMode {
-    /* 0x00 */ u16 flags;
-    /* 0x04 */ void (*init)(void);
-    /* 0x08 */ void (*step)(void);
-    /* 0x0C */ UNK_FUN_PTR(unk_0C);
-    /* 0x10 */ void (*render)(void);
-    /* 0x14 */ void (*renderAux)(void); ///< @see state_render_frontUI
-} GameMode; // size = 0x18
-
 typedef struct PartnerDMAData {
     /* 0x00 */ u32 dmaStart;
     /* 0x04 */ u32 dmaEnd;
diff --git a/include/enums.h b/include/enums.h
index b1b04c0b40..717c9227b0 100644
--- a/include/enums.h
+++ b/include/enums.h
@@ -3491,27 +3491,6 @@ enum EffectGfxDataFlags {
 
 #include "move_enum.h"
 
-enum GameModeIDs {
-    GAME_MODE_STARTUP                     = 0x00000000,
-    GAME_MODE_LOGOS                       = 0x00000001,
-    GAME_MODE_TITLE_SCREEN                = 0x00000002,
-    GAME_MODE_ENTER_DEMO_WORLD            = 0x00000003,
-    GAME_MODE_CHANGE_MAP                  = 0x00000004,
-    GAME_MODE_UNUSED                      = 0x00000005,
-    GAME_MODE_ENTER_WORLD                 = 0x00000006,
-    GAME_MODE_WORLD                       = 0x00000007,
-    GAME_MODE_BATTLE                      = 0x00000008,
-    GAME_MODE_END_BATTLE                  = 0x00000009,
-    GAME_MODE_PAUSE                       = 0x0000000A,
-    GAME_MODE_UNPAUSE                     = 0x0000000B,
-    GAME_MODE_LANGUAGE_SELECT             = 0x0000000C,
-    GAME_MODE_END_LANGUAGE_SELECT         = 0x0000000D,
-    GAME_MODE_FILE_SELECT                 = 0x0000000E,
-    GAME_MODE_END_FILE_SELECT             = 0x0000000F,
-    GAME_MODE_INTRO                       = 0x00000010,
-    GAME_MODE_DEMO                        = 0x00000011,
-};
-
 enum DemoState {
     DEMO_STATE_NONE         = 0,
     DEMO_STATE_ACTIVE       = 1,
diff --git a/include/functions.h b/include/functions.h
index f6eb29d0ed..8171596f79 100644
--- a/include/functions.h
+++ b/include/functions.h
@@ -283,8 +283,6 @@ void mem_clear(void* data, s32 numBytes);
 void intro_logos_set_fade_color(s16 color);
 void intro_logos_set_fade_alpha(s16 alpha);
 
-void set_game_mode(s16 idx);
-
 f32 get_xz_dist_to_player(f32, f32);
 void func_800E06C0(s32);
 void close_status_bar(void);
@@ -584,7 +582,6 @@ void update_workers(void);
 void update_triggers(void);
 void update_scripts(void);
 void update_messages(void);
-void step_current_game_mode(void);
 void update_entities(void);
 void func_80138198(void);
 void bgm_update_music_settings(void);
@@ -596,13 +593,11 @@ void func_802C3EE4(void);
 void render_screen_overlay_backUI(void);
 void render_workers_backUI(void);
 void render_effects_UI(void);
-void state_render_backUI(void);
 void render_window_root(void);
 void render_messages(void);
 void render_workers_frontUI(void);
 void render_screen_overlay_frontUI(void);
 void render_curtains(void);
-void state_render_frontUI(void);
 void fio_init_flash(void);
 void func_80028838(void);
 void clear_screen_overlays(void);
@@ -704,9 +699,9 @@ void state_step_enter_world(void);
 void state_init_change_map(void);
 void state_step_change_map(void);
 void state_drawUI_change_map(void);
-void func_80036430(void);
-void func_8003646C(void);
-void func_80036640(void);
+void state_init_game_over(void);
+void state_step_game_over(void);
+void state_drawUI_game_over(void);
 void state_init_enter_world(void);
 void state_drawUI_enter_world(void);
 void state_init_world(void);
@@ -742,7 +737,6 @@ void state_drawUI_intro(void);
 void state_init_demo(void);
 void state_step_demo(void);
 void state_drawUI_demo(void);
-void game_mode_set_fpDrawAuxUI(s32 i, void (*fn)(void));
 
 void btl_set_player_idle_anims(void);
 
@@ -1073,7 +1067,6 @@ void clear_model_data(void);
 void init_sprite_shading_data(void);
 void clear_sprite_shading_data(void);
 void clear_character_set(void);
-void clear_game_modes(void);
 void clear_trigger_data(void);
 void clear_script_list(void);
 void clear_entity_data(s32);
diff --git a/include/types.h b/include/types.h
index 6e5f25aa60..fcfca9d652 100644
--- a/include/types.h
+++ b/include/types.h
@@ -10,8 +10,6 @@
 #define UNK_FUN_PTR(name) void(*name)(void)
 #define UNK_ARGS
 
-typedef void (*StateFunc)(void);
-
 typedef char* (*PrintCallback)(void*, const char*, u32);
 
 /// Linker symbol address, as in `ld_addrs.h`.
diff --git a/src/111f0_len_860.c b/src/111f0_len_860.c
index f720b1c429..e94988920a 100644
--- a/src/111f0_len_860.c
+++ b/src/111f0_len_860.c
@@ -1,5 +1,6 @@
 #include "common.h"
 #include "nu/nusys.h"
+#include "game_modes.h"
 
 SHIFT_BSS s16 gMapTransitionAlpha;
 SHIFT_BSS s16 gMapTransitionFadeRate;
@@ -85,7 +86,7 @@ void state_step_enter_world(void) {
                     enable_player_input();
                 }
                 set_screen_overlay_params_front(OVERLAY_NONE, -1.0f);
-                set_game_mode(GAME_MODE_CHANGE_MAP);
+                set_game_mode(GAME_MODE_WORLD);
             }
             break;
     }
@@ -173,7 +174,7 @@ void state_step_change_map(void) {
                     enable_player_input();
                 }
                 set_screen_overlay_params_front(OVERLAY_NONE, -1.0f);
-                set_game_mode(GAME_MODE_CHANGE_MAP);
+                set_game_mode(GAME_MODE_WORLD);
             }
             break;
         }
@@ -185,14 +186,14 @@ void state_drawUI_change_map(void) {
     }
 }
 
-void func_80036430(void) {
+void state_init_game_over(void) {
     gMapTransitionAlpha = 255;
     gMapTransitionFadeRate = 20;
     gMapTransitionState = 0x01;
     gPlayerStatus.flags |= PS_FLAG_NO_STATIC_COLLISION;
 }
 
-void func_8003646C(void) {
+void state_step_game_over(void) {
     switch (gMapTransitionState) {
         case 1:
             gOverrideFlags |= GLOBAL_OVERRIDES_8;
@@ -226,7 +227,7 @@ void func_8003646C(void) {
                 gMapTransitionAlpha = 0;
                 gMapTransitionState++;
                 set_screen_overlay_params_front(OVERLAY_NONE, -1.0f);
-                set_game_mode(GAME_MODE_CHANGE_MAP);
+                set_game_mode(GAME_MODE_WORLD);
             }
             update_npcs();
             update_player();
@@ -238,5 +239,5 @@ void func_8003646C(void) {
     set_screen_overlay_params_front(OVERLAY_SCREEN_COLOR, gMapTransitionAlpha);
 }
 
-void func_80036640(void) {
+void state_drawUI_game_over(void) {
 }
diff --git a/src/16F740.c b/src/16F740.c
index 5c7d56a773..ed828b7330 100644
--- a/src/16F740.c
+++ b/src/16F740.c
@@ -5,6 +5,7 @@
 #include "hud_element.h"
 #include "battle/battle.h"
 #include "model.h"
+#include "game_modes.h"
 
 extern StageListRow* gCurrentStagePtr;
 
@@ -2144,7 +2145,7 @@ void btl_state_update_end_battle(void) {
                 gGameStatusPtr->areaID = areaID;
                 gGameStatusPtr->mapID = mapID;
                 gGameStatusPtr->entryID = gv_01_ENTRY_0;
-                set_game_mode(GAME_MODE_ENTER_WORLD);
+                set_game_mode(GAME_MODE_GAME_OVER);
             } else {
                 btl_set_state(BATTLE_STATE_0);
                 gLastDrawBattleState = gBattleState;
diff --git a/src/7fd10_len_b40.c b/src/7fd10_len_b40.c
index 9bbf910d42..f8a8abaef3 100644
--- a/src/7fd10_len_b40.c
+++ b/src/7fd10_len_b40.c
@@ -4,6 +4,7 @@
 #include "macros.h"
 #include "common.h"
 #include "sprite.h"
+#include "game_modes.h"
 #include "pause/pause_common.h"
 #include "world/partners.h"
 #include "world/partner/lakilester.h"
diff --git a/src/battle/battle.c b/src/battle/battle.c
index ef01d43a8a..768fa35010 100644
--- a/src/battle/battle.c
+++ b/src/battle/battle.c
@@ -4,6 +4,7 @@
 #include "battle_tables.h"
 #include "hud_element.h"
 #include "sprite.h"
+#include "game_modes.h"
 
 SHIFT_BSS s32 D_800DC060;
 SHIFT_BSS StageListRow* gCurrentStagePtr;
diff --git a/src/curtains.c b/src/curtains.c
index 4c9ba196c8..5fe66609a1 100644
--- a/src/curtains.c
+++ b/src/curtains.c
@@ -5,6 +5,7 @@
 #include "ui/no_controller.png.h"
 #include "ld_addrs.h"
 #include "nu/nusys.h"
+#include "game_modes.h"
 
 #include "theater/walls.png.inc.c"
 
diff --git a/src/evt/f8f60_len_1560.c b/src/evt/f8f60_len_1560.c
index 00ec8ce94f..0c8937419b 100644
--- a/src/evt/f8f60_len_1560.c
+++ b/src/evt/f8f60_len_1560.c
@@ -1,4 +1,5 @@
 #include "common.h"
+#include "game_modes.h"
 
 // args: start, end, duration, EasingType
 ApiStatus MakeLerp(Evt* script, s32 isInitialCall) {
diff --git a/src/evt/map_api.c b/src/evt/map_api.c
index 1d49fc63e4..3ba9b86d17 100644
--- a/src/evt/map_api.c
+++ b/src/evt/map_api.c
@@ -1,6 +1,7 @@
 #include "common.h"
 #include "model.h"
 #include "evt.h"
+#include "game_modes.h"
 
 extern LavaReset* gLavaResetList;
 extern s32 LastSafeFloor;
@@ -721,7 +722,7 @@ void goto_map(Evt* script, s32 mode) {
     }
 
     set_map_transition_effect(mapTransitionEffect);
-    set_game_mode(GAME_MODE_UNUSED);
+    set_game_mode(GAME_MODE_CHANGE_MAP);
 }
 
 ApiStatus GotoMap(Evt* script, s32 isInitialCall) {
diff --git a/src/filemenu/filemenu_common.c b/src/filemenu/filemenu_common.c
index 2b18b2dd2e..a320f0bdcf 100644
--- a/src/filemenu/filemenu_common.c
+++ b/src/filemenu/filemenu_common.c
@@ -3,6 +3,7 @@
 #include "hud_element.h"
 #include "fio.h"
 #include "ld_addrs.h"
+#include "game_modes.h"
 
 extern HudScript HES_AnimatedCursorHand;
 
diff --git a/src/filemenu/filemenu_main.c b/src/filemenu/filemenu_main.c
index b6ed0b6411..4dc2a2a824 100644
--- a/src/filemenu/filemenu_main.c
+++ b/src/filemenu/filemenu_main.c
@@ -3,6 +3,7 @@
 #include "hud_element.h"
 #include "audio/public.h"
 #include "fio.h"
+#include "game_modes.h"
 
 extern HudScript HES_Spirit1;
 extern HudScript HES_Spirit2;
diff --git a/src/filemenu/filemenu_selectlanguage.c b/src/filemenu/filemenu_selectlanguage.c
index 216b626223..7ff4621800 100644
--- a/src/filemenu/filemenu_selectlanguage.c
+++ b/src/filemenu/filemenu_selectlanguage.c
@@ -3,6 +3,7 @@
 #include "message_ids.h"
 #include "hud_element.h"
 #include "ld_addrs.h"
+#include "game_modes.h"
 
 extern HudScript HES_Spirit1;
 
diff --git a/src/filemenu/filemenu_yesno.c b/src/filemenu/filemenu_yesno.c
index 2e6be85f95..6bfc97bf02 100644
--- a/src/filemenu/filemenu_yesno.c
+++ b/src/filemenu/filemenu_yesno.c
@@ -1,6 +1,7 @@
 #include "common.h"
 #include "filemenu.h"
 #include "fio.h"
+#include "game_modes.h"
 
 #if VERSION_IQUE
 #define DELETE_FILE_DELETE_X            20
diff --git a/src/game_modes.c b/src/game_modes.c
index 393c793dce..7b844a2cd3 100644
--- a/src/game_modes.c
+++ b/src/game_modes.c
@@ -1,6 +1,4 @@
-#include "common.h"
-
-// TODO: decide whether to call these 'game modes' or 'states'
+#include "game_modes.h"
 
 s32 D_80077420[] = {
     0x000000E4, 0x000000E1, 0x000000EB, 0x000000EF, 0x000000F6, 0x0000010A, 0x0000010C, 0x00000121, 0x00000122,
@@ -25,82 +23,246 @@ s32 D_80077420[] = {
     0x000000D4, 0x000000D5, 0x000000D6, 0x000000D7, 0x000000D8, 0x000000D9, 0x000000DA,
 };
 
-// These StateFunc[] should really be GameMode but they seem to sometimes only take up 0x14 bytes of data rather than 0x18 like they should if they were really a struct.
+// These GameModeIncomplete are used as the struct GameMode. As GameModeIncomplete is 0x14 long and GameMode is 0x18 long, the last element
+// and first element of the next struct are shared in data.
 
-StateFunc gameModeBlueprints[] = { NULL, state_init_startup, state_step_startup, NULL, state_drawUI_startup };
+typedef struct GameModeIncomplete {
+    /* 0x00 */ u16 flags;
+    /* 0x04 */ void (*init)(void);
+    /* 0x08 */ void (*step)(void);
+    /* 0x0C */ UNK_FUN_PTR(unusedFunc);
+    /* 0x10 */ void (*render)(void);
+    #ifdef AVOID_UB
+    /* 0x14 */ void (*renderAux)(void); ///< @see state_render_frontUI
+    #endif
+} GameModeIncomplete; // size = 0x14
 
-StateFunc D_800776FC[] = { NULL, state_init_logos, state_step_logos, NULL, state_drawUI_logos };
-
-StateFunc D_80077710[] = { NULL, state_init_title_screen, state_step_title_screen, NULL, state_drawUI_title_screen };
-
-StateFunc D_80077724[] = { NULL, state_init_enter_demo, state_step_enter_world, NULL, state_drawUI_enter_world };
-
-StateFunc D_80077738[] = { NULL, state_init_change_map, state_step_change_map, NULL, state_drawUI_change_map };
-
-StateFunc D_8007774C[] = { NULL, func_80036430, func_8003646C, NULL, func_80036640 };
-
-StateFunc D_80077760[] = { NULL, state_init_enter_world, state_step_enter_world, NULL, state_drawUI_enter_world };
-
-StateFunc D_80077774[] = { NULL, state_init_world, state_step_world, NULL, state_drawUI_world };
-
-StateFunc D_80077788[] = { NULL, state_init_battle, state_step_battle, NULL, state_drawUI_battle };
-
-StateFunc D_8007779C[] = { NULL, state_init_end_battle, state_step_end_battle, NULL, state_drawUI_end_battle };
-
-StateFunc D_800777B0[] = { NULL, state_init_pause, state_step_pause, NULL, state_drawUI_pause };
-
-StateFunc D_800777C4[] = { NULL, state_init_unpause, state_step_unpause, NULL, state_drawUI_unpause };
-
-StateFunc D_800777D8[] = {
-    NULL, state_init_language_select, state_step_language_select, NULL, state_drawUI_language_select
+GameModeIncomplete GameModeStartup = {
+    MODE_FLAG_NONE,
+    state_init_startup,
+    state_step_startup,
+    NULL,
+    state_drawUI_startup,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
 };
 
-StateFunc D_800777EC[] = {
-    NULL, state_init_exit_language_select, state_step_exit_language_select, NULL, state_drawUI_exit_language_select
+GameModeIncomplete GameModeLogos = {
+    MODE_FLAG_NONE,
+    state_init_logos,
+    state_step_logos,
+    NULL,
+    state_drawUI_logos,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
 };
 
-StateFunc D_80077800[] = { NULL, state_init_file_select, state_step_file_select, NULL, state_drawUI_file_select };
-
-StateFunc D_80077814[] = {
-    NULL, state_init_exit_file_select, state_step_exit_file_select, NULL, state_drawUI_exit_file_select
+GameModeIncomplete GameModeTitleScreen = {
+    MODE_FLAG_NONE,
+    state_init_title_screen,
+    state_step_title_screen,
+    NULL,
+    state_drawUI_title_screen,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
 };
 
-StateFunc D_80077828[] = { NULL, state_init_intro, state_step_intro, NULL, state_drawUI_intro };
+GameModeIncomplete GameModeEnterDemoWorld = {
+    MODE_FLAG_NONE,
+    state_init_enter_demo,
+    state_step_enter_world,
+    NULL,
+    state_drawUI_enter_world,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
 
-StateFunc D_8007783C[] = { NULL, state_init_demo, state_step_demo, NULL, state_drawUI_demo };
+GameModeIncomplete GameModeChangeMap = {
+    MODE_FLAG_NONE,
+    state_init_change_map,
+    state_step_change_map,
+    NULL,
+    state_drawUI_change_map,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeGameOver = {
+    MODE_FLAG_NONE,
+    state_init_game_over,
+    state_step_game_over,
+    NULL,
+    state_drawUI_game_over,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeEnterWorld = {
+    MODE_FLAG_NONE,
+    state_init_enter_world,
+    state_step_enter_world,
+    NULL,
+    state_drawUI_enter_world,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeWorld = {
+    MODE_FLAG_NONE,
+    state_init_world,
+    state_step_world,
+    NULL,
+    state_drawUI_world,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeBattle = {
+    MODE_FLAG_NONE,
+    state_init_battle,
+    state_step_battle,
+    NULL,
+    state_drawUI_battle,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeEndBattle = {
+    MODE_FLAG_NONE,
+    state_init_end_battle,
+    state_step_end_battle,
+    NULL,
+    state_drawUI_end_battle,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModePause = {
+    MODE_FLAG_NONE,
+    state_init_pause,
+    state_step_pause,
+    NULL,
+    state_drawUI_pause,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeUnpause = {
+    MODE_FLAG_NONE,
+    state_init_unpause,
+    state_step_unpause,
+    NULL,
+    state_drawUI_unpause,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeLanguageSelect = {
+    MODE_FLAG_NONE,
+    state_init_language_select,
+    state_step_language_select,
+    NULL,
+    state_drawUI_language_select,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeEndLanguageSelect = {
+    MODE_FLAG_NONE,
+    state_init_exit_language_select,
+    state_step_exit_language_select,
+    NULL,
+    state_drawUI_exit_language_select,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeFileSelect = {
+    MODE_FLAG_NONE,
+    state_init_file_select,
+    state_step_file_select,
+    NULL,
+    state_drawUI_file_select,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeEndFileSelect = {
+    0,
+    state_init_exit_file_select,
+    state_step_exit_file_select,
+    NULL,
+    state_drawUI_exit_file_select,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeIntro = {
+    MODE_FLAG_NONE,
+    state_init_intro,
+    state_step_intro,
+    NULL,
+    state_drawUI_intro,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
+
+GameModeIncomplete GameModeDemo = {
+    MODE_FLAG_NONE,
+    state_init_demo,
+    state_step_demo,
+    NULL,
+    state_drawUI_demo,
+    #ifdef AVOID_UB
+    NULL,
+    #endif
+};
 
 GameMode* gameModeMap[] = {
-    (GameMode*) gameModeBlueprints,
-    (GameMode*) D_800776FC,
-    (GameMode*) D_80077710,
-    (GameMode*) D_80077724,
-    (GameMode*) D_80077774,
-    (GameMode*) D_80077738,
-    (GameMode*) D_8007774C,
-    (GameMode*) D_80077760,
-    (GameMode*) D_80077788,
-    (GameMode*) D_8007779C,
-    (GameMode*) D_800777B0,
-    (GameMode*) D_800777C4,
-    (GameMode*) D_800777D8,
-    (GameMode*) D_800777EC,
-    (GameMode*) D_80077800,
-    (GameMode*) D_80077814,
-    (GameMode*) D_80077828,
-    (GameMode*) D_8007783C,
-    NULL,
-    NULL,
+    (GameMode*) &GameModeStartup,
+    (GameMode*) &GameModeLogos,
+    (GameMode*) &GameModeTitleScreen,
+    (GameMode*) &GameModeEnterDemoWorld,
+    (GameMode*) &GameModeWorld,
+    (GameMode*) &GameModeChangeMap,
+    (GameMode*) &GameModeGameOver,
+    (GameMode*) &GameModeEnterWorld,
+    (GameMode*) &GameModeBattle,
+    (GameMode*) &GameModeEndBattle,
+    (GameMode*) &GameModePause,
+    (GameMode*) &GameModeUnpause,
+    (GameMode*) &GameModeLanguageSelect,
+    (GameMode*) &GameModeEndLanguageSelect,
+    (GameMode*) &GameModeFileSelect,
+    (GameMode*) &GameModeEndFileSelect,
+    (GameMode*) &GameModeIntro,
+    (GameMode*) &GameModeDemo,
 };
 
-SHIFT_BSS s16 gameMode;
-
-GameMode* set_game_mode_slot(s32 i, GameMode* mode);
+SHIFT_BSS s16 CurGameMode;
 
 void set_game_mode(s16 mode) {
-    gameMode = mode;
+    CurGameMode = mode;
     set_game_mode_slot(0, gameModeMap[mode]);
 }
 
 s16 get_game_mode(void) {
-    return gameMode;
+    return CurGameMode;
 }
diff --git a/src/game_modes.h b/src/game_modes.h
new file mode 100644
index 0000000000..a2cfc95e0e
--- /dev/null
+++ b/src/game_modes.h
@@ -0,0 +1,55 @@
+#ifndef _GAME_MODES_H_
+#define _GAME_MODES_H_
+
+#include "common.h"
+
+// These flags are mostly unused. Not enough context to discern their original purpose.
+enum GameModeFlags {
+    MODE_FLAG_NONE           = 0,
+    MODE_FLAG_INITIALIZED    = (1 << 0), // Set when the mod is initialized
+    MODE_FLAG_STEP_NOT_DONE  = (1 << 1), // Turned off after the first step is done
+    MODE_FLAG_4              = (1 << 2),
+    MODE_FLAG_8              = (1 << 3),
+    MODE_FLAG_10             = (1 << 4),
+    MODE_FLAG_RENDER_AUX_SET = (1 << 5), // Set when the renderAux function is set
+};
+
+enum GameModeIDs {
+    GAME_MODE_STARTUP             = 0,
+    GAME_MODE_LOGOS               = 1,
+    GAME_MODE_TITLE_SCREEN        = 2,
+    GAME_MODE_ENTER_DEMO_WORLD    = 3,
+    GAME_MODE_WORLD               = 4,
+    GAME_MODE_CHANGE_MAP          = 5,
+    GAME_MODE_GAME_OVER           = 6,
+    GAME_MODE_ENTER_WORLD         = 7,
+    GAME_MODE_BATTLE              = 8,
+    GAME_MODE_END_BATTLE          = 9,
+    GAME_MODE_PAUSE               = 10,
+    GAME_MODE_UNPAUSE             = 11,
+    GAME_MODE_LANGUAGE_SELECT     = 12,
+    GAME_MODE_END_LANGUAGE_SELECT = 13,
+    GAME_MODE_FILE_SELECT         = 14,
+    GAME_MODE_END_FILE_SELECT     = 15,
+    GAME_MODE_INTRO               = 16,
+    GAME_MODE_DEMO                = 17,
+};
+
+typedef struct GameMode {
+    /* 0x00 */ u16 flags;
+    /* 0x04 */ void (*init)(void);
+    /* 0x08 */ void (*step)(void);
+    /* 0x0C */ UNK_FUN_PTR(unusedFunc);
+    /* 0x10 */ void (*render)(void);
+    /* 0x14 */ void (*renderAux)(void); ///< @see state_render_frontUI
+} GameMode; // size = 0x18
+
+void set_game_mode(s16 mode);
+void clear_game_modes(void);
+GameMode* set_game_mode_slot(s32 i, GameMode* mode);
+void game_mode_set_fpDrawAuxUI(s32 i, void (*fn)(void));
+void step_current_game_mode(void);
+void state_render_backUI(void);
+void state_render_frontUI(void);
+
+#endif
diff --git a/src/game_states.c b/src/game_states.c
index 23169cb537..84413b496a 100644
--- a/src/game_states.c
+++ b/src/game_states.c
@@ -1,116 +1,123 @@
 #include "common.h"
+#include "game_modes.h"
 
-SHIFT_BSS GameMode gMainGameState[2]; // TODO rename
+SHIFT_BSS GameMode gMainGameMode[2];
 
-void state_delegate_NOP(void) {
+void mode_default_nop(void) {
 }
 
 void clear_game_modes(void) {
     GameMode* gameMode;
     s32 i;
 
-    for (gameMode = gMainGameState, i = 0; i < ARRAY_COUNT(gMainGameState); i++, gameMode++) {
-        gameMode->flags = 0;
+    for (gameMode = gMainGameMode, i = 0; i < ARRAY_COUNT(gMainGameMode); i++, gameMode++) {
+        gameMode->flags = MODE_FLAG_NONE;
     }
 }
 
-GameMode* set_next_game_mode(GameMode* arg0) {
+
+// Function is unused.
+GameMode* set_next_game_mode(GameMode* mode) {
     GameMode* gameMode;
     s32 i;
 
-    for (gameMode = gMainGameState, i = 0; i < ARRAY_COUNT(gMainGameState); i++, gameMode++) {
-        if (gameMode->flags == 0) {
+    for (gameMode = gMainGameMode, i = 0; i < ARRAY_COUNT(gMainGameMode); i++, gameMode++) {
+        if (gameMode->flags == MODE_FLAG_NONE) {
             break;
         }
     }
 
-    ASSERT(i < ARRAY_COUNT(gMainGameState));
+    ASSERT(i < ARRAY_COUNT(gMainGameMode));
 
-    gameMode->flags = 1 | 2;
-    gameMode->init = arg0->init;
-    gameMode->step = arg0->step;
-    gameMode->render = arg0->render;
-    gameMode->unk_0C = NULL;
+    gameMode->flags = MODE_FLAG_INITIALIZED | MODE_FLAG_STEP_NOT_DONE;
+    gameMode->init = mode->init;
+    gameMode->step = mode->step;
+    gameMode->render = mode->render;
+    gameMode->unusedFunc = NULL;
 
     if (gameMode->init == NULL) {
-        gameMode->init = state_delegate_NOP;
+        gameMode->init = mode_default_nop;
     }
     if (gameMode->step == NULL) {
-        gameMode->step = state_delegate_NOP;
+        gameMode->step = mode_default_nop;
     }
-    if (gameMode->unk_0C == NULL) {
-        gameMode->unk_0C = state_delegate_NOP;
+    if (gameMode->unusedFunc == NULL) {
+        gameMode->unusedFunc = mode_default_nop;
     }
     if (gameMode->render == NULL) {
-        gameMode->render = state_delegate_NOP;
+        gameMode->render = mode_default_nop;
     }
 
-    gameMode->renderAux = state_delegate_NOP;
+    gameMode->renderAux = mode_default_nop;
     gameMode->init();
 
     return gameMode;
 }
 
 GameMode* set_game_mode_slot(s32 i, GameMode* mode) {
-    GameMode* gameMode = &gMainGameState[i];
+    GameMode* gameMode = &gMainGameMode[i];
 
-    ASSERT(i < ARRAY_COUNT(gMainGameState));
+    ASSERT(i < ARRAY_COUNT(gMainGameMode));
 
-    gameMode->flags = 2 | 1;
+    gameMode->flags = MODE_FLAG_INITIALIZED | MODE_FLAG_STEP_NOT_DONE;
     gameMode->init = mode->init;
     gameMode->step = mode->step;
     gameMode->render = mode->render;
-    gameMode->unk_0C = NULL;
-    if (gameMode->init == NULL) gameMode->init = state_delegate_NOP;
-    if (gameMode->step == NULL) gameMode->step = state_delegate_NOP;
-    if (gameMode->unk_0C == NULL) gameMode->unk_0C = state_delegate_NOP;
-    if (gameMode->render == NULL) gameMode->render = state_delegate_NOP;
+    gameMode->unusedFunc = NULL;
+    if (gameMode->init == NULL) gameMode->init = mode_default_nop;
+    if (gameMode->step == NULL) gameMode->step = mode_default_nop;
+    if (gameMode->unusedFunc == NULL) gameMode->unusedFunc = mode_default_nop;
+    if (gameMode->render == NULL) gameMode->render = mode_default_nop;
 
-    gameMode->renderAux = state_delegate_NOP;
+    gameMode->renderAux = mode_default_nop;
     gameMode->init();
 
     return gameMode;
 }
 
 void game_mode_set_fpDrawAuxUI(s32 i, void (*fn)(void)) {
-    GameMode* gameMode = &gMainGameState[i];
+    GameMode* gameMode = &gMainGameMode[i];
 
-    ASSERT(i < ARRAY_COUNT(gMainGameState));
+    ASSERT(i < ARRAY_COUNT(gMainGameMode));
 
     gameMode->renderAux = fn;
-    gameMode->flags |= 0x20;
+    gameMode->flags |= MODE_FLAG_RENDER_AUX_SET;
 
     if (fn == NULL) {
-        gameMode->renderAux = state_delegate_NOP;
+        gameMode->renderAux = mode_default_nop;
     }
 }
 
-void func_80112DD4(s32 i) {
-    gMainGameState[i].flags |= 4;
+// Unused
+void set_game_mode_flag_4(s32 i) {
+    gMainGameMode[i].flags |= MODE_FLAG_4;
 }
 
-void func_80112DFC(s32 i) {
-    gMainGameState[i].flags |= 8;
+// Unused
+void set_game_mode_flag_8(s32 i) {
+    gMainGameMode[i].flags |= MODE_FLAG_8;
 }
 
-void func_80112E24(s32 i) {
-    gMainGameState[i].flags &= ~0x1C;
+// Unused
+void clear_game_mode_unk_flags(s32 i) {
+    gMainGameMode[i].flags &= ~(MODE_FLAG_4 | MODE_FLAG_8 | MODE_FLAG_10);
 }
 
-void func_80112E4C(s32 i) {
-    gMainGameState[i].flags &= ~0x0C;
-    gMainGameState[i].flags |= 0x10;
+// Unused
+void set_game_mode_flag_10(s32 i) {
+    gMainGameMode[i].flags &= ~(MODE_FLAG_4 | MODE_FLAG_8);
+    gMainGameMode[i].flags |= MODE_FLAG_10;
 }
 
 void step_current_game_mode(void) {
-    GameMode* gameMode = gMainGameState;
+    GameMode* gameMode = gMainGameMode;
     s32 i;
 
-    for (i = 0; i < ARRAY_COUNT(gMainGameState); i++, gameMode++) {
-        if (gameMode->flags != 0) {
-            if (!(gameMode->flags & 4)) {
-                if (!(gameMode->flags & 8)) {
-                    gameMode->flags &= ~2;
+    for (i = 0; i < ARRAY_COUNT(gMainGameMode); i++, gameMode++) {
+        if (gameMode->flags != MODE_FLAG_NONE) {
+            if (!(gameMode->flags & MODE_FLAG_4)) {
+                if (!(gameMode->flags & MODE_FLAG_8)) {
+                    gameMode->flags &= ~MODE_FLAG_STEP_NOT_DONE;
                     gameMode->step();
                 }
             }
@@ -118,15 +125,16 @@ void step_current_game_mode(void) {
     }
 }
 
+// Unused
 void state_do_unk(void) {
-    GameMode* gameMode = gMainGameState;
+    GameMode* gameMode = gMainGameMode;
     s32 i;
 
-    for (i = 0; i < ARRAY_COUNT(gMainGameState); i++, gameMode++) {
-        if (gameMode->flags != 0) {
-            if (!(gameMode->flags & 4)) {
-                if (!(gameMode->flags & 0x10)) {
-                    gameMode->unk_0C();
+    for (i = 0; i < ARRAY_COUNT(gMainGameMode); i++, gameMode++) {
+        if (gameMode->flags != MODE_FLAG_NONE) {
+            if (!(gameMode->flags & MODE_FLAG_4)) {
+                if (!(gameMode->flags & MODE_FLAG_10)) {
+                    gameMode->unusedFunc();
                 }
             }
         }
@@ -134,13 +142,13 @@ void state_do_unk(void) {
 }
 
 void state_render_backUI(void) {
-    GameMode* gameMode = gMainGameState;
+    GameMode* gameMode = gMainGameMode;
     s32 i;
 
-    for (i = 0; i < ARRAY_COUNT(gMainGameState); i++, gameMode++) {
-        if (gameMode->flags != 0) {
-            if (!(gameMode->flags & 4)) {
-                if (!(gameMode->flags & 0x10)) {
+    for (i = 0; i < ARRAY_COUNT(gMainGameMode); i++, gameMode++) {
+        if (gameMode->flags != MODE_FLAG_NONE) {
+            if (!(gameMode->flags & MODE_FLAG_4)) {
+                if (!(gameMode->flags & MODE_FLAG_10)) {
                     gameMode->render();
                 }
             }
@@ -149,14 +157,14 @@ void state_render_backUI(void) {
 }
 
 void state_render_frontUI(void) {
-    GameMode* gameMode = gMainGameState;
+    GameMode* gameMode = gMainGameMode;
     s32 i;
 
-    for (i = 0; i < ARRAY_COUNT(gMainGameState); i++, gameMode++) {
-        if (gameMode->flags != 0) {
-            if (!(gameMode->flags & 4)) {
-                if (!(gameMode->flags & 2)) {
-                    if (gameMode->flags & 0x20) {
+    for (i = 0; i < ARRAY_COUNT(gMainGameMode); i++, gameMode++) {
+        if (gameMode->flags != MODE_FLAG_NONE) {
+            if (!(gameMode->flags & MODE_FLAG_4)) {
+                if (!(gameMode->flags & MODE_FLAG_STEP_NOT_DONE)) {
+                    if (gameMode->flags & MODE_FLAG_RENDER_AUX_SET) {
                         gameMode->renderAux();
                     }
                 }
@@ -165,12 +173,12 @@ void state_render_frontUI(void) {
     }
 
     // re-initialization needed - evidence of inlining? or just copy/pasting?
-    gameMode = &gMainGameState[0];
-    for (i = 0; i < ARRAY_COUNT(gMainGameState); i++, gameMode++) {
-        if (gameMode->flags != 0) {
-            if (!(gameMode->flags & 4)) {
-                if (!(gameMode->flags & 2)) {
-                    if (gameMode->flags & 0x10) {
+    gameMode = &gMainGameMode[0];
+    for (i = 0; i < ARRAY_COUNT(gMainGameMode); i++, gameMode++) {
+        if (gameMode->flags != MODE_FLAG_NONE) {
+            if (!(gameMode->flags & MODE_FLAG_4)) {
+                if (!(gameMode->flags & MODE_FLAG_STEP_NOT_DONE)) {
+                    if (gameMode->flags & MODE_FLAG_10) {
                         gameMode->render();
                     }
                 }
diff --git a/src/main_loop.c b/src/main_loop.c
index 7ffa07b08c..9eae9ba0b1 100644
--- a/src/main_loop.c
+++ b/src/main_loop.c
@@ -4,6 +4,7 @@
 #include "hud_element.h"
 #include "sprite.h"
 #include "overlay.h"
+#include "game_modes.h"
 
 SHIFT_BSS s32 gOverrideFlags;
 SHIFT_BSS s32 timeFreezeMode;
diff --git a/src/pause/pause_main.c b/src/pause/pause_main.c
index ec8fab53cb..35981b504e 100644
--- a/src/pause/pause_main.c
+++ b/src/pause/pause_main.c
@@ -2,6 +2,7 @@
 #include "message_ids.h"
 #include "sprite.h"
 #include "pause_common.h"
+#include "game_modes.h"
 #include "sprite/npc/Goombaria.h"
 #include "sprite/npc/WorldGoombario.h"
 #include "sprite/npc/Goompa.h"
diff --git a/src/state_battle.c b/src/state_battle.c
index b80ffaad82..abfba2dd6e 100644
--- a/src/state_battle.c
+++ b/src/state_battle.c
@@ -5,6 +5,7 @@
 #include "sprite.h"
 #include "battle/battle.h"
 #include "model.h"
+#include "game_modes.h"
 
 extern u16 gFrameBuf0[];
 extern u16 gFrameBuf1[];
@@ -203,7 +204,7 @@ void state_step_end_battle(void) {
                 if (D_800A0908 != 0) {
                     set_time_freeze_mode(D_800A0908);
                 }
-                set_game_mode(GAME_MODE_CHANGE_MAP);
+                set_game_mode(GAME_MODE_WORLD);
             }
         }
     }
diff --git a/src/state_demo.c b/src/state_demo.c
index 72ed95d370..863c4fe9e7 100644
--- a/src/state_demo.c
+++ b/src/state_demo.c
@@ -2,6 +2,7 @@
 #include "hud_element.h"
 #include "battle/battle.h"
 #include "sprite.h"
+#include "game_modes.h"
 
 typedef struct DemoSceneData {
     /* 0x0 */ s16 sceneType;
diff --git a/src/state_file_select.c b/src/state_file_select.c
index 3bc42f3e8c..df0ec224c7 100644
--- a/src/state_file_select.c
+++ b/src/state_file_select.c
@@ -5,6 +5,7 @@
 #include "hud_element.h"
 #include "sprite.h"
 #include "model.h"
+#include "game_modes.h"
 
 #if VERSION_JP
 // TODO: split the filemenu segment
@@ -369,7 +370,7 @@ void state_step_exit_language_select(void) {
             update_encounters();
             update_effects();
             enable_player_input();
-            set_game_mode(GAME_MODE_CHANGE_MAP);
+            set_game_mode(GAME_MODE_WORLD);
             set_screen_overlay_params_front(OVERLAY_NONE, -1.0f);
             break;
         }
@@ -432,7 +433,7 @@ void state_step_exit_file_select(void) {
             }
             break;
         case 6:
-            set_game_mode(GAME_MODE_WORLD);
+            set_game_mode(GAME_MODE_ENTER_WORLD);
             break;
     }
 }
diff --git a/src/state_intro.c b/src/state_intro.c
index 73875a3581..ad6fbe2c35 100644
--- a/src/state_intro.c
+++ b/src/state_intro.c
@@ -1,6 +1,7 @@
 #include "common.h"
 #include "hud_element.h"
 #include "sprite.h"
+#include "game_modes.h"
 
 SHIFT_BSS s32 D_800A0950;
 SHIFT_BSS s16 D_800A0954;
diff --git a/src/state_logos.c b/src/state_logos.c
index 97fc7ce51f..9a95b0e0d5 100644
--- a/src/state_logos.c
+++ b/src/state_logos.c
@@ -4,6 +4,7 @@
 #include "hud_element.h"
 #include "sprite.h"
 #include "nu/nusys.h"
+#include "game_modes.h"
 
 void appendGfx_intro_logos(void);
 
diff --git a/src/state_pause.c b/src/state_pause.c
index 7f05b0aab7..4c7833c3c0 100644
--- a/src/state_pause.c
+++ b/src/state_pause.c
@@ -5,6 +5,7 @@
 #include "hud_element.h"
 #include "sprite.h"
 #include "model.h"
+#include "game_modes.h"
 
 #if VERSION_JP
 // TODO: split this segment
@@ -249,7 +250,7 @@ void state_step_unpause(void) {
             update_player();
             update_effects();
             enable_player_input();
-            set_game_mode(GAME_MODE_CHANGE_MAP);
+            set_game_mode(GAME_MODE_WORLD);
             break;
     }
 }
diff --git a/src/state_startup.c b/src/state_startup.c
index f147dbbdaf..7a13a03ade 100644
--- a/src/state_startup.c
+++ b/src/state_startup.c
@@ -2,6 +2,7 @@
 #include "hud_element.h"
 #include "fio.h"
 #include "sprite.h"
+#include "game_modes.h"
 
 void state_init_startup(void) {
     gOverrideFlags |= GLOBAL_OVERRIDES_8;
diff --git a/src/state_title_screen.c b/src/state_title_screen.c
index b3637659bc..fda6b8b55f 100644
--- a/src/state_title_screen.c
+++ b/src/state_title_screen.c
@@ -2,6 +2,7 @@
 #include "nu/nusys.h"
 #include "hud_element.h"
 #include "sprite.h"
+#include "game_modes.h"
 
 #if VERSION_JP
 #define TITLE_WIDTH 272
diff --git a/src/state_world.c b/src/state_world.c
index 3838794adc..e9f0935a07 100644
--- a/src/state_world.c
+++ b/src/state_world.c
@@ -1,5 +1,6 @@
 #include "functions.h"
 #include "npc.h"
+#include "game_modes.h"
 
 void state_world_draw_aux_ui(void);
 
diff --git a/src/world/area_gv/gv_01/gv_01_1_main.c b/src/world/area_gv/gv_01/gv_01_1_main.c
index 90526166ae..088d96d678 100644
--- a/src/world/area_gv/gv_01/gv_01_1_main.c
+++ b/src/world/area_gv/gv_01/gv_01_1_main.c
@@ -1,6 +1,7 @@
 #include "gv_01.h"
 #include "sprite.h"
 #include "hud_element.h"
+#include "game_modes.h"
 #include "sprite/player.h"
 
 #include "world/common/entity/Pipe.inc.c"
diff --git a/src/world/area_kmr/kmr_02/kmr_02_3_npc.c b/src/world/area_kmr/kmr_02/kmr_02_3_npc.c
index 00034880db..6dfc9b668c 100644
--- a/src/world/area_kmr/kmr_02/kmr_02_3_npc.c
+++ b/src/world/area_kmr/kmr_02/kmr_02_3_npc.c
@@ -1,6 +1,7 @@
 #include "kmr_02.h"
 #include "effects.h"
 #include "model.h"
+#include "game_modes.h"
 #include "sprite/player.h"
 
 extern EvtScript N(EVS_NpcAI_Eldstar_02);
diff --git a/src/world/area_kmr/kmr_24/kmr_24_1_main.c b/src/world/area_kmr/kmr_24/kmr_24_1_main.c
index 3023ede92d..961ced708a 100644
--- a/src/world/area_kmr/kmr_24/kmr_24_1_main.c
+++ b/src/world/area_kmr/kmr_24/kmr_24_1_main.c
@@ -1,5 +1,6 @@
 #include "kmr_24.h"
 #include "fio.h"
+#include "game_modes.h"
 
 API_CALLABLE(N(ExitGame)) {
     s16 progress;
@@ -17,7 +18,7 @@ API_CALLABLE(N(ExitGame)) {
         script->functionTemp[1] = progress;
         return ApiStatus_BLOCK;
     } else {
-        set_game_mode(0);
+        set_game_mode(GAME_MODE_STARTUP);
         return ApiStatus_DONE2;
     }
 }
diff --git a/ver/ique/asm/bss.s b/ver/ique/asm/bss.s
index 92bb761ec8..0feef0f4d7 100644
--- a/ver/ique/asm/bss.s
+++ b/ver/ique/asm/bss.s
@@ -286,7 +286,7 @@ dlabel D_800A08E8
 dlabel D_800A08EC
 .space 4
 
-dlabel gameMode
+dlabel CurGameMode
 .space 4
 
 dlabel D_800A08F4
diff --git a/ver/ique/asm/bss3.s b/ver/ique/asm/bss3.s
index e82d13275d..881803603a 100644
--- a/ver/ique/asm/bss3.s
+++ b/ver/ique/asm/bss3.s
@@ -168,7 +168,7 @@ dlabel bEntityBlueprint
 dlabel D_801516FC
 .space 4
 
-dlabel gMainGameState
+dlabel gMainGameMode
 .space 0x00000040
 
 dlabel gCurrentTextureHeader
diff --git a/ver/jp/asm/main.bss.s b/ver/jp/asm/main.bss.s
index c4139fd029..2b021c6ae1 100644
--- a/ver/jp/asm/main.bss.s
+++ b/ver/jp/asm/main.bss.s
@@ -223,7 +223,7 @@ dlabel D_800A08E8
 dlabel D_800A08EC
 .space 4
 
-dlabel gameMode
+dlabel CurGameMode
 .space 0x00000010
 
 dlabel D_800A0900
diff --git a/ver/pal/asm/bss3.s b/ver/pal/asm/bss3.s
index f33be6131c..3f347a5893 100644
--- a/ver/pal/asm/bss3.s
+++ b/ver/pal/asm/bss3.s
@@ -170,7 +170,7 @@ dlabel bEntityBlueprint
 dlabel D_801516FC
 .space 4
 
-dlabel gMainGameState
+dlabel gMainGameMode
 .space 0x00000040
 
 dlabel gCurrentTextureHeader
diff --git a/ver/us/asm/bss.s b/ver/us/asm/bss.s
index 7f95727eac..096cf8b64f 100644
--- a/ver/us/asm/bss.s
+++ b/ver/us/asm/bss.s
@@ -280,7 +280,7 @@ dlabel D_800A08E8
 dlabel D_800A08EC
 .space 4
 
-dlabel gameMode
+dlabel CurGameMode
 .space 4
 
 dlabel D_800A08F4
diff --git a/ver/us/asm/bss3.s b/ver/us/asm/bss3.s
index def2bed6f7..42a53690bb 100644
--- a/ver/us/asm/bss3.s
+++ b/ver/us/asm/bss3.s
@@ -170,7 +170,7 @@ dlabel bEntityBlueprint
 dlabel D_801516FC
 .space 4
 
-dlabel gMainGameState
+dlabel gMainGameMode
 .space 0x00000040
 
 dlabel gCurrentTextureHeader
diff --git a/ver/us/symbol_addrs.txt b/ver/us/symbol_addrs.txt
index 18c5cbfda9..304ad31461 100644
--- a/ver/us/symbol_addrs.txt
+++ b/ver/us/symbol_addrs.txt
@@ -220,9 +220,9 @@ state_drawUI_enter_world = 0x800360FC; // type:func rom:0x114FC
 state_init_change_map = 0x80036130; // type:func rom:0x11530
 state_step_change_map = 0x8003617C; // type:func rom:0x1157C
 state_drawUI_change_map = 0x800363FC; // type:func rom:0x117FC
-func_80036430 = 0x80036430; // type:func rom:0x11830
-func_8003646C = 0x8003646C; // type:func rom:0x1186C
-func_80036640 = 0x80036640; // type:func rom:0x11A40
+state_init_game_over = 0x80036430; // type:func rom:0x11830
+state_step_game_over = 0x8003646C; // type:func rom:0x1186C
+state_drawUI_game_over = 0x80036640; // type:func rom:0x11A40
 state_init_intro = 0x80036650; // type:func rom:0x11A50
 state_step_intro = 0x80036854; // type:func rom:0x11C54
 state_drawUI_intro = 0x80036DE0; // type:func rom:0x121E0
@@ -1362,24 +1362,24 @@ beforeFlag = 0x800773FC; // rom:0x527FC
 nuSiCallBackList = 0x80077400; // rom:0x52800
 gCurrentCameraID = 0x80077410; // rom:0x52810
 D_80077420 = 0x80077420; // rom:0x52820
-gameModeBlueprints = 0x800776E8; // rom:0x52AE8
-D_800776FC = 0x800776FC; // rom:0x52AFC
-D_80077710 = 0x80077710; // rom:0x52B10
-D_80077724 = 0x80077724; // rom:0x52B24
-D_80077738 = 0x80077738; // rom:0x52B38
-D_8007774C = 0x8007774C; // rom:0x52B4C
-D_80077760 = 0x80077760; // rom:0x52B60
-D_80077774 = 0x80077774; // rom:0x52B74
-D_80077788 = 0x80077788; // rom:0x52B88
-D_8007779C = 0x8007779C; // rom:0x52B9C
-D_800777B0 = 0x800777B0; // rom:0x52BB0
-D_800777C4 = 0x800777C4; // rom:0x52BC4
-D_800777D8 = 0x800777D8; // rom:0x52BD8
-D_800777EC = 0x800777EC; // rom:0x52BEC
-D_80077800 = 0x80077800; // rom:0x52C00
-D_80077814 = 0x80077814; // rom:0x52C14
-D_80077828 = 0x80077828; // rom:0x52C28
-D_8007783C = 0x8007783C; // rom:0x52C3C
+GameModeStartup = 0x800776E8; // rom:0x52AE8
+GameModeLogos = 0x800776FC; // rom:0x52AFC
+GameModeTitleScreen = 0x80077710; // rom:0x52B10
+GameModeEnterDemoWorld = 0x80077724; // rom:0x52B24
+GameModeChangeMap = 0x80077738; // rom:0x52B38
+GameModeGameOver = 0x8007774C; // rom:0x52B4C
+GameModeEnterWorld = 0x80077760; // rom:0x52B60
+GameModeWorld = 0x80077774; // rom:0x52B74
+GameModeBattle = 0x80077788; // rom:0x52B88
+GameModeEndBattle = 0x8007779C; // rom:0x52B9C
+GameModePause = 0x800777B0; // rom:0x52BB0
+GameModeUnpause = 0x800777C4; // rom:0x52BC4
+GameModeLanguageSelect = 0x800777D8; // rom:0x52BD8
+GameModeEndLanguageSelect = 0x800777EC; // rom:0x52BEC
+GameModeFileSelect = 0x80077800; // rom:0x52C00
+GameModeEndFileSelect = 0x80077814; // rom:0x52C14
+GameModeIntro = 0x80077828; // rom:0x52C28
+GameModeDemo = 0x8007783C; // rom:0x52C3C
 gameModeMap = 0x80077850; // rom:0x52C50
 bFrameBuffers = 0x800778A0; // rom:0x52CA0
 D_800778AC = 0x800778AC; // rom:0x52CAC
@@ -3947,15 +3947,15 @@ set_standard_shadow_scale = 0x8011285C; // type:func rom:0xA8F5C
 set_npc_shadow_scale = 0x80112900; // type:func rom:0xA9000
 set_peach_shadow_scale = 0x801129D4; // type:func rom:0xA90D4
 is_block_on_ground = 0x80112B20; // type:func rom:0xA9220
-state_delegate_NOP = 0x80112B90; // type:func rom:0xA9290
+mode_default_nop = 0x80112B90; // type:func rom:0xA9290
 clear_game_modes = 0x80112B98; // type:func rom:0xA9298
 set_next_game_mode = 0x80112BBC; // type:func rom:0xA92BC
 set_game_mode_slot = 0x80112CA8; // type:func rom:0xA93A8
 game_mode_set_fpDrawAuxUI = 0x80112D84; // type:func rom:0xA9484
-func_80112DD4 = 0x80112DD4; // type:func rom:0xA94D4
-func_80112DFC = 0x80112DFC; // type:func rom:0xA94FC
-func_80112E24 = 0x80112E24; // type:func rom:0xA9524
-func_80112E4C = 0x80112E4C; // type:func rom:0xA954C
+set_game_mode_flag_3 = 0x80112DD4; // type:func rom:0xA94D4
+set_game_mode_flag_4 = 0x80112DFC; // type:func rom:0xA94FC
+clear_game_mode_unk_flags = 0x80112E24; // type:func rom:0xA9524
+set_game_mode_flag_5 = 0x80112E4C; // type:func rom:0xA954C
 step_current_game_mode = 0x80112E78; // type:func rom:0xA9578
 state_do_unk = 0x80112EEC; // type:func rom:0xA95EC
 state_render_backUI = 0x80112F58; // type:func rom:0xA9658
@@ -4819,7 +4819,7 @@ wEntityBlueprint = 0x80151668; // rom:0xE7D68
 start_script = 0x802C33E0; // type:func rom:0xE7D90
 bEntityBlueprint = 0x801516E8; // rom:0xE7DE8
 D_801516FC = 0x801516FC; // rom:0xE7DFC
-gMainGameState = 0x80151700; // rom:0xE7E00
+gMainGameMode = 0x80151700; // rom:0xE7E00
 gCurrentTileDescriptor = 0x80151740; // rom:0xE7E40
 wModelList = 0x80151770; // rom:0xE7E70
 start_script_in_group = 0x802C35D0; // type:func rom:0xE7F80