My only complaint is the races. and its not really a complaint i should say, just a part of the game i dont really care for. Just wished they would have stuck with the kill all the oponents on the level and advance to the next. and of course I wish there would have been an online multiplayer campaign, thought the rest of the online mulitplayer is extremely fun. these are just my minor complaints about the game, otherwise i think its definetly fun and extremely addicting!