diff --git a/constants/map_setup_constants.asm b/constants/map_setup_constants.asm
index d91c86d28..10a933820 100644
--- a/constants/map_setup_constants.asm
+++ b/constants/map_setup_constants.asm
@@ -24,3 +24,4 @@ DEF NUM_MAPSETUP_SCRIPTS EQU const_value - $f1
 	const MAPCALLBACK_CMDQUEUE
 	const MAPCALLBACK_SPRITES
 	const MAPCALLBACK_NEWMAP
+	const MAPCALLBACK_ENDMAPSETUP
diff --git a/data/maps/maps.asm b/data/maps/maps.asm
index cf54278f2..0cbe59185 100644
--- a/data/maps/maps.asm
+++ b/data/maps/maps.asm
@@ -49,8 +49,8 @@ MapGroup_DebugLevel1:
 
 MapGroup_DebugLevel2:
 	table_width MAP_LENGTH, MapGroup_DebugLevel2
-	map DebugLevel2_Map1, TILESET_BOARD_DEBUG_2, INDOOR_CAVE, LANDMARK_DEBUGLEVEL_2, MUSIC_NEW_BARK_TOWN, FALSE, PALETTE_NITE, FISHGROUP_SHORE, 2
-	map DebugLevel2_Map2, TILESET_BOARD_DEBUG_2, INDOOR_CAVE, LANDMARK_DEBUGLEVEL_2, MUSIC_NEW_BARK_TOWN, FALSE, PALETTE_NITE, FISHGROUP_SHORE, 2
+	map DebugLevel2_Map1, TILESET_BOARD_DEBUG_2, INDOOR_CAVE, LANDMARK_DEBUGLEVEL_2, MUSIC_NEW_BARK_TOWN, FALSE, PALETTE_NITE | IN_DARKNESS, FISHGROUP_SHORE, 2
+	map DebugLevel2_Map2, TILESET_BOARD_DEBUG_2, INDOOR_CAVE, LANDMARK_DEBUGLEVEL_2, MUSIC_NEW_BARK_TOWN, FALSE, PALETTE_NITE | IN_DARKNESS, FISHGROUP_SHORE, 2
 	assert_table_length NUM_DEBUGLEVEL_2_MAPS
 
 MapGroup_DebugLevel3:
diff --git a/data/maps/setup_script_pointers.asm b/data/maps/setup_script_pointers.asm
index 975804f01..c257f054e 100644
--- a/data/maps/setup_script_pointers.asm
+++ b/data/maps/setup_script_pointers.asm
@@ -56,3 +56,4 @@ MapSetupCommands:
 	add_mapsetup AnchorPointAfterWarp ; 31
 	add_mapsetup BackupMapObjects ; 32
 	add_mapsetup LoadDisabledSpaces ; 33
+	add_mapsetup MapCallbackAtEndMapSetup ; 34
diff --git a/data/maps/setup_scripts.asm b/data/maps/setup_scripts.asm
index 188a3c470..116328609 100644
--- a/data/maps/setup_scripts.asm
+++ b/data/maps/setup_scripts.asm
@@ -48,6 +48,7 @@ MapSetupScript_EnterLevel:
 	mapsetup FadeInPalettesFromWhite
 	mapsetup ActivateMapAnims
 	mapsetup LoadWildMonData
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_Teleport:
@@ -81,6 +82,7 @@ MapSetupScript_Warp:
 	mapsetup ActivateMapAnims
 	mapsetup LoadWildMonData
 	mapsetup AnchorPointAfterWarp
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_BadWarp:
@@ -108,6 +110,7 @@ MapSetupScript_BadWarp:
 	mapsetup ActivateMapAnims
 	mapsetup LoadWildMonData
 	mapsetup AnchorPointAfterWarp
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_Connection:
@@ -128,6 +131,7 @@ MapSetupScript_Connection:
 	mapsetup LoadWildMonData
 	mapsetup UpdateRoamMons
 	mapsetup ActivateMapAnims
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_Fall:
@@ -158,6 +162,7 @@ MapSetupScript_Train:
 	mapsetup LoadWildMonData
 	mapsetup UpdateRoamMons
 	mapsetup AnchorPointAfterWarp
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_ReloadMap:
@@ -178,6 +183,7 @@ MapSetupScript_ReloadMap:
 	mapsetup FadeInPalettesFromWhite
 	mapsetup ActivateMapAnims
 	mapsetup LoadWildMonData
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_ExitViewMap:
@@ -202,6 +208,7 @@ MapSetupScript_ExitViewMap:
 	mapsetup FadeInPalettesFromWhite
 	mapsetup ActivateMapAnims
 	mapsetup LoadWildMonData
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_LinkReturn:
@@ -222,6 +229,7 @@ MapSetupScript_LinkReturn:
 	mapsetup ActivateMapAnims
 	mapsetup LoadWildMonData
 	mapsetup EnableTextAcceleration
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_Continue:
@@ -244,6 +252,7 @@ MapSetupScript_Continue:
 	mapsetup FadeInPalettesFromWhite
 	mapsetup ActivateMapAnims
 	mapsetup LoadWildMonData
+	mapsetup MapCallbackAtEndMapSetup
 	db -1 ; end
 
 MapSetupScript_Submenu:
diff --git a/engine/events/field_moves.asm b/engine/events/field_moves.asm
index 825804b6d..155fede0e 100644
--- a/engine/events/field_moves.asm
+++ b/engine/events/field_moves.asm
@@ -9,6 +9,23 @@ PlayWhirlpoolSound:
 	call WaitSFX
 	ret
 
+UseFlashAuto::
+	; ReplaceTimeOfDayPals in map setup command LoadMapTimeOfDay sets wTimeOfDayPalset to DARKNESS_PALSET
+	; only if wStatusFlags[STATUSFLAGS_FLASH_F] has not been set.
+	ld a, [wTimeOfDayPalset]
+	cp DARKNESS_PALSET
+	ret nz
+	ld c, 30 ; 500 ms
+	call DelayFrames
+	call WaitSFX
+	ld de, SFX_FLASH
+	call PlaySFX
+	call BlindingFlash
+	ld c, 30 ; 500 ms
+	call DelayFrames
+	call WaitSFX
+	ret
+
 BlindingFlash:
 	farcall FadeOutPalettesToWhite
 	ld hl, wStatusFlags
diff --git a/engine/overworld/map_setup.asm b/engine/overworld/map_setup.asm
index 7678b4436..9e759d397 100644
--- a/engine/overworld/map_setup.asm
+++ b/engine/overworld/map_setup.asm
@@ -202,3 +202,6 @@ ResetLevelScopedEventFlags:
 	jr nz, .loop
 	ret
 
+MapCallbackAtEndMapSetup:
+	ld a, MAPCALLBACK_ENDMAPSETUP
+	jp RunMapCallback
diff --git a/maps/DebugLevel2_Map1.asm b/maps/DebugLevel2_Map1.asm
index 3bb82027f..55a73a0ee 100755
--- a/maps/DebugLevel2_Map1.asm
+++ b/maps/DebugLevel2_Map1.asm
@@ -4,6 +4,11 @@ DebugLevel2_Map1_MapScripts:
 	def_scene_scripts
 
 	def_callbacks
+	callback MAPCALLBACK_ENDMAPSETUP, .FlashAutoScript
+
+.FlashAutoScript:
+	callasm UseFlashAuto
+	endcallback
 
 DebugLevel2_Map1_MapEvents:
 	db 0, 0 ; filler