+game.register_thing_type(Thing_Door)
+game.register_thing_type(Thing_DoorKey)
+game.register_thing_type(Thing_DoorSpawner)
+game.register_thing_type(Thing_Bottle)
+game.register_thing_type(Thing_BottleSpawner)
+game.register_thing_type(Thing_BottleDeposit)
+game.register_thing_type(Thing_MusicPlayer)
+game.register_thing_type(Thing_Hat)
+game.register_thing_type(Thing_HatRemixer)
+game.register_thing_type(Thing_Cookie)
+game.register_thing_type(Thing_CookieSpawner)
+game.register_thing_type(Thing_Psychedelic)
+game.register_thing_type(Thing_PsychedelicSpawner)