Its really cool. SO, SO, SO much work went in this. Everything from character design to sounds to text all in a 2D sidescroller. I would not buy it, but you may want to check it out as your are waiting for halo 3 on the out of stock xbox 360. I had issues with it shutting down during game play or delay. If i held a key when i was running and shot a few times. I would keep running and then shoot shots second after. It is still something to check out. I did not try the multi player because it crashed on me. I hear it is cool if you can get it working. All you have to do is put in your friends ip address and he puts in yours. I am not sure if it is the same game levels in single player.