I Love This Game
The only downfall on it is, the co-op mode is on xbox live only, there is no local co-op mode, maybe they were unable to do it at the time they made the game but other then that, this game is solid, well worth 60 dollars, now it's cheaper so It's worth every penny.
I have beaten the game already a few times, playing on co-op and now I'm trying to get all the achievements (this could take a while). There is 900 gamerscore points available before u get the dlc, but after dlc u can get 1250 gamerscore points, which makes for fun replay value, especially when you realize how entertaining some of the achievements are.