Shortens doors to 3 blocks tall. This includes mothership doors.
Does not use any freespace.
You will have to edit the tile table for each tileset you use.
You MUST also change the door object's height to 3. Otherwise the door WILL freak out when shot.

Contents of shortDoors.7z:
- shortDoors.asm
- genericbg.gfxraw
- hatches.tilemap
- transition.rletilemap

Update 4/12/2022
- Updated graphics for mainly mothership animation, but also regular hatches
- Generic BG/tilemaps rearranged for the possibility of horizontal doors in the future