It was definately the ads that associated the game with the PS3 that did it as well as the Joker DLC. I played it on the 360 (UE3 engine runs better on it) and its a great game with loads if goodies to collect. Shame the 360 didn't get the joker DLC later on but apparently from what I've heard it's a bit odd and not quite in sync with the rest of the game.