Wii sports: Fun game. Introduction to the wiimote. Decent graphics and ability to use your own mii's.
Zelda TP: It's a zelda game that uses the wiimote/nunchuck. Do I really need to say more? If you don't own it by now and have a wii...WTF are you doing? Zelda IS the best game for the wii atm. Hands down.