Legend of Zelda: Ocarina of Time, classic probably the best zelda game ever
Mario Kart 64, although I like the cube one a little better.
Super Smash Bros., on that shit all day baby.
Diddy Kong Racing, addicting as shit.
Perfect Dark/Goldeneye. Its a tie, however, Perfect Dark was a better single-player game than Goldeneye. Ah, Perfect Dark was better.