http://www.adultswim.com/games/vivacaligula/index.html

Just got through playing it, and Viva Caligula is a very cool game; at least for half a hour and is one of the best if not the best Adult Swim game in my opinion. In summary, its a bloody action game where you kill everybody you see with various weapons that are different letters on the keyboard. If you have a mic, you can yell into it to get a strength boost too. When you go on a rampage, you can pretty much one hti kill people and blood splatters all on the screen. :D The ultimate goal is to collect all 26 weapons/letters in order to unlock the "Orgy Room". I only managed to get 13 before some skeletons kicked my ass though. Oh yeah, if you manage to die and have the patience, you can continue without losing your collected weapons.