Regarding the hitbox thing, it wasn't that off. Rather, the player would land on the edge of the house but then be snapped slightly to the center.
Viewing post in BATTY VAMPS: LEGACY jam comments
Ah good, that's WAD. I wanted players to be able to land on the sides of the house since they are bats after all. But I didn't want the human vampire sprite to be standing somewhere other than the roof of the house. I'll see if there's a way for me to 'slide' the player over so it looks more natural.