I've got "No More Heroes", One of the few "adult" kick ass games for the Wii.
It's like Grand Theft Auto meets a Tarentino flick. Basically you are a 20-something slacker-assassin that runs around killing shit with a "Beam Katana" - 'nuff said.
Check out some reviews, its my favorite Wii Game.
Willing to Trade, I'm looking for Firebirds, Rocs, Magnets.