Killer Instinct 2013 had rhythm based ultra combos.It definitely looks like they took some of his Omega mode shyt from IV, I'm interested in the music notes that were popping up as he was doing his combo, I've always wondered how a rhythm fighter would look and he seems to be the first crack at it.
When you consider everything that's been borrowed from it KI might be the most influential fighting game of the last 2 gens