Rock Band 2 (Beat the endless setlist, it's a shame most of the really hard tracks are death metal, which I;m not too into)
Mess Effect
Half Life
Half Life 2
Perfect World
Aliens Vs. Predator 2 (This is pretty freaky!)
Crysis: I don't know why everyone rags on this game. I'm totally with Holk here, the game is fantastic. It's a thrill and a joy to be able to run up and grab my enemies by the neck and use them as shields while I'm invisible or whatever. Beautiful game and great gameplay, what's not to love? The real time weapon modding and suit mode is great, the former adds some more tactics and the latter kind of reminds me of Metroid Prime.