Fun. Reached floor 36 with no problem using Roller Pig who is way too overpowered (just hold F the entire time) until I could no longer progress because a block formed in the way of the only path to the exit. Wish the keys D and F were customizable. There seemed to be a memory problem in which the game slows down due to skeleton production but the lag persists even to new rooms. Dying and starting over with a new character solved the issue.