Ah man that sucks. There are a few must-haves for it:
1) Twilight Princess. 'Nuff said.
2) Metroid Prime 3. I converted a metroid-hater to a fan simply by getting him to play this game with me.
3) Battalion Wars II. Its the best online game they've got right now.
4) Resident Evil 4. I just realized how many of these are sequels
5) Guitar Hero. Of course
6) Super Mario Galaxy. So I don't phail, Zoro11031