I'm going to ninja the crap out of grant. It's going to be hilarious.
Something occurred to me. The character I chose has a ridiculous portfolio of shit he can do, since that's part of the joke of his character. This means in a few fields he's going to have an unfair advantage, will that be a problem? Also:
None of these are supernatural in any way. but he does have knowledge of a lot of those things, should I remove that? Or does the metaphysics of this place simply difrend?
To give an example, in one of the comics he is fighting a ghost and loses his blessed knuckledusters, so he can't hit the incorporeal being. But there is a ninja technique that allows you to punch ghosts that involves humming the ghost busters theme. how would that hold up in your setting?