Some of the larger bosses occupy layer 2 to do their rendering. These include:
Walls
Dragons
Lich
Watermelon
Putting these on a map that has layer 2 background tiles causes lots of problems, so currently they are restricted to only their own arenas. For example, watermelon can randomize onto lich map, but never onto mantis ant map.
A workaround for this might be to swap whole boss maps in - you could have watermelon at mantis ant location, but the potos hole would actually lead to a copy of the watermelon arena instead of the mantis ant hole.
This would be easy enough at this spot since it's a one-off location, but might cause problems in some other spots where the boss arena becomes a transitional map after the fight (like lumina tower)
Some of the larger bosses occupy layer 2 to do their rendering. These include:
Putting these on a map that has layer 2 background tiles causes lots of problems, so currently they are restricted to only their own arenas. For example, watermelon can randomize onto lich map, but never onto mantis ant map.
A workaround for this might be to swap whole boss maps in - you could have watermelon at mantis ant location, but the potos hole would actually lead to a copy of the watermelon arena instead of the mantis ant hole.
This would be easy enough at this spot since it's a one-off location, but might cause problems in some other spots where the boss arena becomes a transitional map after the fight (like lumina tower)