it's a $15 psn download-only game (also on xbox's download store too). the full name is super street fighter 2 turbo hd remix. the game was redone with hd sprites and the moves were altered a tad here and there to make the game more balanced. also akuma is now a regular playable character (in vs. mode press up on e. honda). it was basically designed with advice from top level tournament players in mind. you can play online with random ppl or friends and setup tourneys and stuff. it's pretty much a better version of sf2 with online play which equals WIN.