I was gonna post this last nite after it aired on [adult swim] but for some reason I couldn't help but think I had seen it b4 and that it was a re-run and not a new episode. But other sites are talking about it so it must be new.
Well any way
Grand Theft Mario, and watch for Yoshi's appearance too.
edit: More Robot Chicken videogame parodies
Final Fantasy VII The Kart Race Halo vs Donkey Kong Pokemon