Let's see...
3DSFire Emblem: Awakening
DSAdvance Wars: Days of Ruin
Castlevania: Dawn of Sorrow
Castlevania: Portrait of Ruin
Etrian Odyssey
Hotel Dusk: Room 215
Nostalgia
Picross
Picross 3D
Professor Layton and the Curious Village
Professor Layton and the Diabolical Box
Professor Layton and the Unwound Future
Scribblenauts
Super Scribblenauts
Tetris DS
GBAAdvance Wars
Advance Wars 2: Black Hole Rising
Castlevania; Aria of Sorrow
Castlevania: Circle of the Moon
Castlevania: Harmony of Dissonance
Final Fantasy IV Advance
Final Fantasy V Advance
Final Fantasy VI Advance
Fire Emblem
Fire Emblem: The Sacred Stones
Metroid Fusion
Shining Force: Resurrection of the Dark Dragon
GCEternal Darkness: Sanity's Requiem
Fire Emblem: Path of Radiance
Resident Evil
Resident Evil 2
Resident Evil 3: Nemesis
Resident Evil 4
Resident Evil Code: Veronica
Resident Evil Zero
SoulCalibur II
Super Smash Bros. Melee
NESAbadox
Adventure Island
Adventure Island 2
Adventures of Lolo
Adventures of Lolo 2
Archon: The Light and the Dark (I'm only putting it on here because I've played it and won, not that that's much of an accomplishment
)
Castlevania II: Simon's Quest
Chip 'n Dale: Rescue Rangers
Contra
Double Dragon
Dr. Mario
DuckTales
Final Fantasy
Galaga
Guerrilla War
Kirby's Adventure
The Legend of Zelda
Little Samson (used to own this
)
Mega Man
Mega Man 2
Mega Man 3
Mega Man 5
Metal Gear
Mickey Mousecapade
Mike Tyson's Punch Out
R.C. Pro-Am
StarTropics
Super C
Super Mario Bros.
Super Mario Bros. 2
Super Mario Bros. 3
Teenage Mutant Ninja Turtles II
Teenage Mutant Ninja Turtles III
Tetris
Tiger Heli
Whomp 'Em
Zelda II: The Adventure of Link
N64007: The World Is Not Enough
Castlevania
Castlevania: Legacy of Darkness
Cruis'n USA
Diddy Kong Racing
Doom 64
Duke Nukem 64
GoldenEye 007
Hexen
The Legend of Zelda: Ocarina of Time
Mario Kart 64
Perfect Dark
Quest 64
Re-Volt
Star Fox 64
Star Wars: Shadows of the Empire
Super Mario 64
Super Smash Bros.
Turok: Dinosaur Hunter
Wave Race 64
PC (can't remember most of these)
The Black Mirror
Doom
Doom II
PS1Castlevania: Symphony of the Night
Chrono Cross
Diablo
Final Fantasy VII
Final Fantasy IX
Final Fantasy Tactics
Metal Gear Solid
Resident Evil
Resident Evil 2
Resident Evil 3: Nemesis
Twisted Metal
PS2Baldur's Gate: Dark Alliance
Dark Cloud
MetropolisMania
PS3Heavy Rain
The Walking Dead
PSPDissidia: Final Fantasy
Final Fantasy
Final Fantasy IV: Complete Collection
Sega 32XDoom
Sega CDDark Wizard
Shining Force CD
Sega GenesisMaster of Monsters
Shining Force II
Sonic the Hedgehog 2
Sonic the Hedgehog 3
Vectorman
SNESThe Addams Family
Aladdin
Breath of Fire
Chrono Trigger
Contra III: The Alien Wars
Donkey Kong Country 3: Dixie Kong's Double Trouble
E.V.O.: The Search for Eden
Earthworm Jim 2
F-Zero
Final Fantasy II
Final Fantasy III
Final Fantasy Mystic Quest
Final Fight
Hook
Illusion of Gaia
Joe & Mac
King of Dragons
Kirby Super Star
The Legend of Zelda: A Link to the Past
Lufia and the Fortress of Doom
The Magical Quest Starring Mickey Mouse
Mega Man X
Mighty Morphin' Power Rangers
Ms. Pac-Man
Ogre Battle: March of the Black Queen
Paladin's Quest
Pilotwings
Secret of Mana
SimEarth
Soul Blazer
Super Castlevania IV
Super Mario Kart
Super Mario RPG
Super Mario World
Super Metroid
Teenage Mutant Ninja Turtles IV: Turtles in Time
Uniracers
Zombies Ate My Neighbors
WiiFire Emblem: Radiant Dawn
I Spy: Spooky Mansion (lol, with my son)
Kirby's Epic Yarn
Kirby's Return to Dream Land
Mario Kart Wii
New Super Mario Bros. Wii
Super Mario Galaxy
Super Smash Bros. Brawl
Wii UNew Super Mario Bros. U
ZombiU
XboxBaldur's Gate: Dark Alliance 2
Doom 3
Fable
Silent Hill 4: The Room
X360Alan Wake
Batman: Arkham Asylum
Batman: Arkham City
Bioshock
Bioshock 2
Borderlands
Borderlands 2
Call of Duty: World at War
Castlevania: Lords of Shadow
Dead Island
Dead Rising
Dead Rising 2
Dead Rising 2: Off the Record
Dead Space
Dead Space 2
Dead Space 3
Deus Ex: Human Revolution
Doom 3
Dragon Age: Origins
Fable II
Ghostbusters
L.A. Noire
Left 4 Dead
Left 4 Dead 2
Portal 2
Prototype
Red Dead Redemption
Resident Evil 5
Resident Evil 6
Silent Hill: Downpour