And same for co-op categories. Right now I'm keeping it very simple since no one else has run this game. I think it would be a banger to run co-op but sadly it has only couch co-op capability, which severely limits the possibilities.

Should anyone come by and want variable to make new categories (more likely for Mode than Difficulty, but AFAIK it's either none or both), I have no real problem with that. It's just not necessary at this time.