The first game that I ever played from Adult Swim was called "Five Minutes To Kill (Yourself)." It perfectly encapsulated the nihilistic and sarcastic tone of Adult Swim as a programming block, and it was a pretty hilarious game to boot. Now the boys in black have returned to their roots with Giant Boulder of Death. It's about a giant boulder that kills people, among other things.
GBoD is what Katamari Damacy would be if it was about ten times faster and replaced stickiness with destruction.