Monday games confessional

We may have done this before, but hey, it's Monday. Anyway, with Final Fantasy XII due out soon it reminded me that I never did get round to playing Final Fantasy VII, the supposed classic of the series. And when it comes to RTS games there are some notable blanks including Starcraft and the original Command and Conquer. Eeek. But what about you? Forget acclaimed cult games like Psychonauts, we're talking Half Life 2, GTA: Vice City, Goldeneye, Super Mario 64, Metal Gear Solid 2, Zelda: Ocarina of Time etc - which classic game have you never played?