Hmm...I was a much huger gamer as a kid than I am now. XD But I miss playing them...fun times.
N64: Legend of Zelda: Ocarina of Time, Super Smash Bros, Mario Kart, Super Mario 64, Golden Eye, Star Wars: Shadows of the Empire, Yoshi's Story (I'm pretty sure that's what it was called...), Star Fox, and lots more that I can't remember at the moment. XD
GameCube: Super Smash Bros: Melee, Mario Kart, Animal Crossing, Paper Mario, Lord of the Rings: The Third Age, Lego Star Wars...
PS1: Crash Bandicoot racing, or something like that. XD
PS2: Medal of Honor, Kingdom Hearts, Kingdom Hearts 2, Star Wars: BattleFront 1 and 2, and more that I can't recall.
Xbox: Crash Bandicoot series, some Star Wars game that I can't remember, and many many more. XD
Yeah...I played more games than I should have. XD