I haven't tried it, but from what I've heard it does have some lag to it. That comes in the territory with all beat-em-ups going online, but it certainly isn't UNPLAYABLE like others have said. I feel Scott Pilgrim is a huge upgrade to Simpsons Arcade. I played Simpsons first before playing Scott Pilgrim and it felt like a huuuuuge leap forward once I played Scott Pilgrim.