Bayonetta (should be on sale for like 10 buck rn) Ty Binding of Isaac Nuclear Throne Jet Set Radio But for real Bayonetta changed my life. There's just something about it that's so magical.
Oh right. Can't forget about Automata if you don't have that already. And I'd also recommend Night In The Woods if you're into that sort of game. And Skullgirls.
Yeah development on Skullgirls wrapped up a little while ago, they're working on Indivisible now. It's still a fantastic fighting game regardless.