-NES-
Super Mario Brothers
Super Mario Brothers 2
Super Mario Brothers 3
Karnov
Castlevania
The Legend Of Zelda
Blades Of Steel
Teenage Mutant Ninja Turtles
Teenage Mutant Ninja Turtles 2: Arcade
Yoshi
Pinball
Bubble Bobble
Tetris
Megaman
Megaman IV

-SNES-
Super Mario World
Super Mario All-Stars
NHL '96
Madden '96
Tetris/Dr. Mario
Donkey Kong Country
Donkey Kong Country 2
Donkey Kong Country 3
Breath Of Fire
Final Fantasy VI
Earthbound
True Lies
Mario Kart
The Legend Of Zelda: A Link To The Past

-Sega-
Sonic The Hedgehog
Sonic The Hedgehog 2
Sonic The Hedgehog 3

-N64-
Super Mario 64
Mario Kart 64
Rampage World Tour
Clayfighter 63 1/3
Donkey Kong 64
The Legend Of Zelda: Ocarina Of Time
The Legend Of Zelda: Majora's Mask
Hexen
Super Smash Brothers
Pokemon Snap (Bah.)
Diddy Kong Racing
Tony Hawk's Pro Skater
Mario Party
Mario Party 3
Goldeneye
Perfect Dark
Harvest Moon 64
Mortal Kombat

-Gameboy/Advance/Color-
Final Fantasy Adventure
Boxxle
Tetris
Super Mario Land
Super Mario Land 2: Six Golden Coins
Donkey Kong Country (god that was hard to beat.)
Harvest Moon
Super Mario Brothers Deluxe
Pokemon Red
Pokemon Yellow
Pokemon Pinball
Some Kung-Fu game
Some skateboarding game
The Legend Of Zelda: Link's Awakening
The Legend of Zelda: Oracle Of Seasons

-Gamecube-
Super Smash Brothers Melee
Resident Evil
Metroid Prime
Soul Calibur II
Mario Kart: Double Dash!!
Animal Crossing (trying to sell it)
MVP Baseball 2004
MLS Extratime 2004
The Legend Of Zelda: The Wind Waker

-Playstation-
Final Fantasy VII
Final Fantasy VIII
Final Fantasy IX
Final Fantasy Origins
Final Fantasy Tactics
Resident Evil: Directors Cut
Resident Evil 2
Resident Evil 3: Nemesis
Chrono Cross

-Playstation 2-
Kingdom Hearts
MLB 2004
Final Fantasy X-2
Evil Dead: Fistful Of Boomstick
Grand Theft Auto: Vice City

-PC-
Diablo
Diablo II
Starcraft
Warcraft II (I think)

NOTE: I don't remember every game I have, I just remembered what I could.