I'm looking for some fun multiplayer Wii games.

We are already enjoying Wii Sports Resort, and Wii Play, plus the games with Wii Fit plus, so if you know of any other Wii games that would be great.

Games with balance board or motion plus support would be great too. I understand Grand Slam Tennis and Tiger Woods 2010 support the motion plus so might try those, and Family Ski and Snowboarding supports the balance board.