Atari 2600: Space Invaders (So much <3)
NES: Super Mario Bros 3 (my first game period, back in 90/91)
PC: Wolfenstein 3D
SNES: Super Mario World
Gameboy: Tetris
Sega Genesis: Sonic 2
Game Gear: Sonic 2
N64: Shadows of the Empire
Playstation: Crash Bandicoot, I think.
Game Boy Color: I think it was Pokemon. Either that, or Link's Awakening.
PS2: GTAIII
Gamecube: Star Wars: Rogue Leader
Xbox: Star Wars: Knights of the Old Republic
GBA: Super Mario World
DS: Super Mario Kart DS