Hmm alot actually:
Supermario Bros (Obviously)
Sonic
Megaman series, Rockman, Megaman Legends
Castlevania SotN, AoS, PoR, DoS, bloodlines, Dracula X Chronicles
Super Smash Bros 64 , melee, Brawl
Warcraft (any game)
Starcraft
GTA
Warioware Inc ( just gotta love this game, and thier simple host of characters)
Not so famous games on the PSX( my simple mind appreciates stuff like Spyro, Croc, Crash bandicoot)
Bioshock
Crysis
Guilty Gear
Monster Rancher 1 and 2
Oblivion
Pacman