My collection of NES games is quite large, as about 60% of it was passed down from my dad when he died several years ago. I made a list a couple of years ago and I counted almost 500 unique games, but I have purchased at least a couple of dozen more since then.

Here's the list from 2 years ago:

[SPOILER:1b3dd22a05]10 Yard Fight
1942
1943
720°
8 Eyes
Abadox
The Addams Family
AD&D: DragonStrike
AD&D: Hillsfar
AD&D: Pool of Radiance
Adventure Island
Adventure Island II
Adventure Island III
Adventures in the Magic Kingdom
The Adventures of Bayou Billy
Adventures of Dino Riki
Adventures of Lolo
Adventures of Lolo 2
Adventures of Lolo 3
The Adventures of Tom Sawyer
After Burner
Air Fortress
Airwolf
Al Unser Jr's Turbo Racing
Aladdin
Alien 3
Alien Syndrome
Alpha Mission
Amagon
American Gladiators
Anticipation
Arch Rivals
Archon
Arkanoid
Asterix
Astyanax
Athena
Attack of the Killer Tomatoes
Back to the Future
Back to the Future Part II & III
Bad News Baseball
Balloon Fight
Bandit Kings of Ancient China
The Bard's Tale
Base Wars
Baseball
Baseball Stars
Bases Load
Bases Loaded 3
Bases Loaded 4
Batman
Batman Returns
Batman: Return of the Joker
Battle Chess
The Battle of Olympus
Battle Tank
Battleship
Battletoads
Battletoads & Double Dragon
Beetlejuice
Bible Adventures
Bigfoot
Big Nose the Caveman
Bill & Ted's Excellent Video Game Adventure
Bionic Commando
Blades of Steel
Blaster Master
The Blues Brothers
Bo Jackson Baseball
Bomberman
Bomberman II
Bonk's Adventure
A boy and His Blob: Trouble on Blobolonia
Bram Stoker's Dracula
BreakThru
Bubble Bobble
Bucky O'Hare
The Bugs Bunny Birthday Blowout
The Bugs Bunny Crazy Castle
Bump 'n' Jump
BurgerTime
Cabal
California Games
Captain America and The Avengers
Captain Planet
Captain Skyhawk
Casino Kid
Castelian
Castlevania
Castlevania II: Simon's Quest
Castlevania III: Dracula's Curse
Caveman Games
Championship Bowling
Championship Rally
Chip 'n Dale: Rescue Rangers
Circus Caper
City Connection
Clash at Demonhead
Cliffhanger
Clu CLu Land
Cobra Triangle
Code Name: Viper
Commando
Conquest of the Crystal Palace
Contra
Contra Force
Cool World
Crackout
Crystalis
Cybernoid
Darkman
Darkwing Duck
Days of Thunder
Deadly Tower
Defender II
Defender of the Crown
Deja Vu
Demon Sword
Destiny of an Emperor
Devil World
Dick Tracy
Dig Dug II
Donkey Kong
Donkey Kong 3
Donkey Kong Classics
Donkey Kong Jr.
Double Dare
Double Dragon
Double Dragon II: The Revenge
Double Dragon III: The Sacred Stones
Dr. Mario
Dragon Fighter
Dragon Warrior
Dragon Warrior II
Dragon Warrior III
Dragon Warrior IV
Dragon's Lair
DuckTales
DuckTales 2
Dynowarz: Destruction of Spondylus
Elevator Action
Excitebike
F-117A Stealth Fighter
F-15 Strike Eagle
Family Feud
Faxanadu
Felix the Cat
Fester's Quest
Final Fantasy
Fire 'n Ice
Fist of the North Star
Flight of the Intruder
Flying Dragon: The Secret Scroll
Flying Warriors
Freedom Force
Friday the 13th
Fun House
G.I. Joe
Galaga
Gargoyle's Quest II
Gauntlet
Gauntlet II
Genghis Khan
George Foreman's KO Boxing
Ghostbusters
Ghostbusters II
Ghosts 'n Goblins
Ghoul School
Goal!
Godzilla: Monster of Monsters
Godzilla 2: War of the Monsters
Golf
Golgo 13: Top Secret Episode
The Goonies II
Gradius
The Great Waldo Search
Gremlin's 2: The New Batch
The Guardian Legend
Guerilla War
Gumshoe
Gun Nac
Gunsmoke
Gyromite
Gyruss
Harlem Globetrotters
Hatris
Heavy Shreddin'
Hogan's Alley
Hollywood Squares
Home Alone
Home Alone 2: Lost in New York
Hook
Hudson Hawk
Hydlide
Ice Climber
Ice Hockey
Ikari Warriors
Ikari Warriors II: Victory Road
Ikari Warriors III: The Rescue
The Immortal
Indian Jones and the Last Crusade
Indiana Jones and the Temple of Doom
Infiltrator
Iron Tank
Ironsword: Wizards and Warriors II
Jackal
James Bond Jr.
Jaws
Jeopardy!
Jeopardy! 25th Anniversary Edition
Jimmy Connors Tennis
Joe & Mac
John Elway's Quarterback
Jordan vs. Bird: One on One
Journey to Silius
Joust
The Jungle Book
Jurassic Park
Harate Champ
The Karate Kid
Karnov
Kickle Cubicle
Kid Icarus
Kid Kool
Kid Niki: Radical Ninja
King's Quest V: Absence Makes the Heart Go Yonder!
Kirby's Adventure
Klax
Knight Rider
The Krion Conquest
Krusty's Fun House
Kung Fu
Kung Fu Heroes
Last Action Hero
The Last Starfighter
Lee Trevino's Fighting Golf
Legacy of the Wizard
The Legend of Kage
The Legend of Zelda
Legendary Wings
Lemmings
Lethal Weapon
Life Force
Little Nemo: The Dream Master
Little Samson
Lode Runner
Loopz
Low G Man: The Low Gravity Man
Master Chu and the Drunkard Hu
M.C. Kids
M.U.L.E.
M.U.S.C.L.E.
Mach Rider
Mad Max
The Magic of Scheherazade
MagMax
Major League Baseball
Maniac Mansion
Mappy-Land
Marble Madness
Mario Bros.
Mario Is Missing!
Mechanized Attack
Mega Man
Mega Man 2
Mega Man 3
Mega Man 4
Mega Man 5
Mega Man 6
Metal Gear
Metal Storm
Metroid
Michael Andretti's World GP
Mickey Mousecapade
Micro Machines
Might and Magic Book One: The Secret of the Inner Sanctum
Mighty Bomb Jack
Mike Tyson's Punch-Out!!
Millipede
Milon's Secret Castle
Mission: Impossible
Monopoly
Moster In My Pocket
Monster Truck Rally
Ms. Pac Man
Muppet Adventure: Chaos at the Carnival
Mystery Quest
NARC
NES Open Tournament Golf
NES Play Action Football
The New Zealand Story
NFL Football
A Nightmare on Elm Street
Ninja Crusaders
Ninja Gaiden
Ninja Gaiden II: The Dark Sword of Chaos
Ninja Gaiden III: The Ancient Ship of Doom
Nobunaga's Ambition
Nobunaga's Ambition II
North & South
Operation Wolf
Othello
P.O.W.: Prisoners of War
Pac-Man
Palamedes
Paperboy
Paperboy 2
Parodius Da!
Peter Pan and the Pirates
Pictionary
Pinball
Pinball Quest
Pin*Bot
Pipe Dream
Pirates!
Platoon
Popeye
Predator: Soon the Hunt Will Begin
Prince of Persia
Princess Tomato in the Salad Kingdom
Pro Wrestling
The Punisher
Puss 'n Boots: Pero's Great Adventure
Q*Bert
Qix
R.C. Pro-Am
R.C. Pro-Am II
Racket Attack
Rad Racer
Rad Racer II
Rainbow Islands
Rambo
Rampage
Rampart
Remote Control
Renegade
Ring King
River City Ransom
RoadBlasters
Road Runner
RoboCop
RoboCop 2
RoboCop 3
Robowarrior
Rocket Ranger
The Rocketeer
Rockin' Kats
Roger Clemens' MVP Baseball
RollerGames
Romance of the Three Kingdoms
Romacne of the Three Kingdoms II
Rush'n Attack
Rygar
Section Z
Seicross
Shadow of the Ninja
Shadowgate
Shingen the Ruler
Shinobi
Side Pocket
Silent Service
Silkworm
Silver Surfer
The Simpsons: Bart vs. the Space Mutants
The Simpsons: Bart vs. the World
The Simpsons: Bartman Meets Radioactive Man
Skate or Die!
Skate or Die 2: The Search for Double Trouble
Ski or Die
Skull & Crossbones
Sky Shark
Slalom
Smash TV
Snake Rattle 'n' Roll
Snake's Revenge
Snow Brothers
Soccer
Solar Jetman: Hunt for the Golden Warpship
Solomon's Key
Solstice: The Quest for the Staff of Demnos
Spelunker
Spider-Man: Return of the Sinister Six
Spiritual Warfare
Spot
Spy Hunter
Spy vs. Spy
Star Force
Star Soldier
Star Trek: 25th Anniversary
Star Voyager
Star Wars
Star Wars: The Empire Strikes Back
StarTropics
Stinger
Street Fighter 2010: The Final Fight
Strider
Super C
Super Dodge Ball
Super Glove Ball
Super Jeopardy!
Super Mario Bros.
Super Mario Bros./Duck Hunt
Super Mario Bros./Duck Hunt/World Class Track Meet
Super Mario Bros. 2
Super Mario Bros. 3
Super Pitfall
Super Spy Hunter
Superman
Swamp Thing
Swords and Serpents
Taboo: The Sixth Sense
Tag Team Wrestling
TaleSpin
Tecmo Baseball
Tecmo Bowl
Tecmo Super Bowl
Tecmo World Wrestling
Teenage Mutant Ninja Turtles
Teenage Mutant Ninja Turtles II: The Arcade Game
Teenage Mutant Ninja Turtles III: The Manhattan Project
Teenage Mutant Ninja Turtles: Tournament Fighters
Tennis
The Terminator
Terminator 2: Judgment Day
Tetris(Tengen)
Tetris
Tetris 2
Thunder & Lightning
Thundercade
Tiger Heli
Time Lord
Tiny Toon Adventures
To the Earth
Tom and Jerry
Top Gun
Top Gun: The Second Mission
Total Recall
Totally Rad
T&C Surf Designs: Wood & Water Rage
T&C II: Thrilla's Surfari
Track & Field
Track & Field II
Trojan
Twin Cobra
Twin Eagle
Ultima III: Exodus
Ultima IV: Quest of the Avatar
Ultima V: Warriors of Destiny
The Uncanny X-Men
Uninvited
Urban Champion
Vegas Dream
Vindicators
Volleyball
Wall Street Kid
Wario's Woods
WCW Wrestling
Werewolf: The Last Warrior
Wheel of Fortune
Wheel of Fortune Family Edition
Where in Time is Carmen Sandiego?
Where's Waldo?
Who Framed Roger Rabbit?
Wild Gunman
Willow
Winter Games
Wizardry: Proving Grounds of the Mad Overlord
Wizardry II: The Knight of Diamonds
Wizards & Warriors
Wizard & Warriors III: Kuros: Visions of Power
Wolverine
World Class Track Meet
Wrath of the Black Manta
Wrecking Crew
WWF King of the Ring
WWF Wrestlemania
WWF Wrestlemania Challenge
WWF WrestleMania: Steel Cage Challenge
Xevious
Xexyz
Yo! Noid
Yoshi's Cookie
Zanac
Zelda II: The Adventures of Link
Zoda's Revenge: StarTropics II
Zombie Nation[/SPOILER:1b3dd22a05]
When I move into my new place this month I am going to be setting up a game area and I will take some photos so you all can get an idea of how retarded it is to have so many games.