Hey, is there a reason theres no 2Player Category for Advanced Difficulty?

My guess is simply that no one has submitted a recording of such a run.

I don't want to speak for all the mods right off the bat, but I'm guessing that if a run were submitted to us, we'd be happy to list the category here, as long as it follows all the applicable rules of the Novice 2P category/general speedrunning praxis.