Already I've found a bug. Dennis is using his underwear sprite during combat despite having clothes on in his inventory. So for whatever reason he's just in his undies.
I just saw here, and a frame that wasn't intended to be exported with his outfit ended up being, which causes the standing frame to show nothing, and the walking combat frames to be delayed.
Cool. I'll see what else I can find. I'm also wondering what pets I should collect considering the acid doggies'... "Green shower" plus armor piercer seems really crazy since I'm assuming it can inflict bleed on top of acid. Which sounds like a recipe for damage.