One of the best games to get for co-op! Addictive Diablo like looting wrapped in a fun FPS package. Co-op available via offline 2 player splitscreen or 4 players on Live. Only thing missing from this one is splitscreen online. Then it would've been the perfect co-op game!

Coop missions available in splitscreen or online. 4 player splitscreen coop available locally. Extremely versatile coop gameplay, though for some reason I find it really hard to view in splitscreen.

Coop available only via Live. Another fun game with a highlight on farce not realism like GTA. Whole campaign is available on coop. You can even skip missions you've played on a friends game. Multiple diversions are also available to break up the gameplay.

2 player splitscreen coop. 4 player via Live. Great tactical style gameplay that encourages teamwork and flanking. Rambo at your own risk!

Cooperative campaign for 4 players Live or 2 players splitscreen. Coop Call of Duty exactly as you've expected it. Very addictive though you can beat it in one night.

Excellent options for coop. 4 players Live with 1 splitscreen guest per 360 or 2 players local.

First 360 game that really handled co-op drop in/out play via Live incredibly well. Two players splitcreen offline.

Two player splitscreen or Live gameplay. Game was built from the ground up with co-op in mind, so you get what you'd expect: an extremely fun, flank and kill experience. Hopefully, the aggro device is explored to greater effect in the sequel.

Satisfying explosions and destruction in this sequel to the Xbox classic. Coop is available on Live for 2 players.

As fun as Lego Star Wars. Some changes in gameplay to provide variety. Same addictive replayability.