yeah, that's the problem not much fighting games available on Wii U so far, but yes you can use this stick on Tekken Tag 2, Injustice, smash bros (think everyone will be using a Gamecube pad for that though) and Tatsunoko vs capcom (a Wii game playable on Wii U)
what about injustice?
Can only really use this on tekken so far, would be a waste on anything else. Nice price though. These are great build quality.