hahaha Destroy all Humans 2, i love that game! not too violent, but if you use the Dislocator on the Ninjas in the camp at Tokyo, and then talk to the leader dude for a mission, they fly around in the background, its so funny. In Resident Evil 4, if you look close, when you shot off a guys head, you can see little peices of his brain and skull fly around. if thats not violent, I dont know what is.
There was a game that was banned because it was too sexually suggestive and violent. after a few plays of this fighting game and seeing a revealingly dressed nurse with a cattle prod who embraces herself, beat down a man who uses meat hooks to snag people and mutilate them, I figured it would be the most violent I ever played... now If I could just remember what the game for Playstation was called...