XBOX 360 Party Games

[DaSimkin]

So what are some good XBOX 360 Party Games?

I'm particularilly fond of Wario Ware on the GC, Ravings rabids I II and III and Mario Kart on the WII and LBP and Puzzle Fighter on the PS3.  What's good/comparable on the Xbox360 (I want local multiplayer, not online, a leader board is nice too).

Fighter games count too, but I am already aware of those so they don't apply to this thread.