Wii Play for WII - Wii Play Wii - Wii Play WII Game
Read through that and the FAQ on the forum. It's a bunch of minigames built to promote multiplayer. The game comes with a free Wiimote (a real deal!). Comes with games like Duck Hunt, Laser Hockey (I think that's what it's called), Billiards, Charge, Fishing, and more.