- Are all the mask textures (located in Mask.arc, Mask_flashlight.arc, Mask_flashlight_obake.arc) are used.
- Is obj_waterscreen.arc used?
- Check player animations
- hidden pipe objects in 4-4 A2
- hidden terrain objects in 4-ghost house A1
- hidden lifts above 5-tower boss room
- "Terrain lighting" setting in zone settings is unused
- In all the dumped versions, there are two Stage folder revisional differences.