What are the most popular games that you've never played?

[Munkeh111]

any Halo (I may have played 1 round of the original)
any stealth game (I may have played a demo for MGS 2)
and Xbox exclusive
any Metroid Prime
any non-GBA Mario game
any Wii game other than Wii sports
any non-GBA main Nintendo franchise
anything before PS1