Since Knocturne is a polysyllabic word I will vote more than once.
I want to do a platformer the most, if that ended up the case, I would love drawing the weird dark level and my boss would be this giant panda thing that looks like the Radiohead bear kinda. We could add other useable characters after the final project is done, also.
My second vote is for side-scrolling brawler, I'm imagining it looking similar to the old ones, so for the most part, animation wouldn't be too complicated. There could be the kind of premise where a mysterious entity summons heroes of other worlds/dimensions to fight eachother, then the good people would be playable and the bad people would be villains. Or we could bring the option of playing as the villains.