I haven't had time to test every one of them, but I would do that before closing any deals.
Arch Rivals
Bard's Tale, The
Baseball Stars
Captain Skyhawk (complete)
Castlevania III: Dracula's Curse
Contra
Cybernoid
Days of Thunder
Defender of the Crown
Double Dragon II: The Revenge
Double Dragon III: The Sacred Stone
Dr. Mario (w/ manual)
Dragon Warrior
Dungeon Magic: Sword of the Elements (loose)
Excitebike
Faxanadu (w/ box)
Faxanadu
Golf (complete)
Golgo 13: Top Secret Episode
Goonies II
Hudson Hawk (w/ manual)
Ice Climber (w/ box)
Jaws (w/ manual)
Kabuki - Quantum Fighter
Kid Niki
Lee Trevino's Fighting Golf
Legacy of the Wizard
Legend of Zelda, The (grey, w/ hint map in poor condition)
Lode Runner
Marble Madness
Metal Gear
Michael Andretti's World Grand Prix
Milon's Secret Castle
Mission Impossible
Monopoly
Monster Party
Pac-Man (Tengen)
Pro Wrestling (w/ box)
Punch-Out!!
R.C. Pro-Am (w/ manual)
Racket Attack (rental version in plastic case)
Rad Racer (w/ box)
Rollergames (w/ box)
Silent Service (complete)
Silent Service (loose)
Skate or Die
Street Fighter 2010: The Final Fight
Super Mario Bros/Duck Hunt
Super Mario Bros. 3
Super Spike V' Ball/Nintendo World Cup
Tecmo Super Bowl
Teenage Mutant Ninja Turtles (w/ box)
Tetris (complete)
Top Gun (complete)
Total Recall (w/ manual)
Wheel of Fortune (complete)
Willow
Wolverine
Xevious
Yoshi (w/ box)
Zelda II: The Adventures of Link (Gold)
Trades pending:
Attack of the Killer Tomatoes (w/ manual)
Bases Loaded 3
Blues Brothers, The (w/ manual)
Boy and His Blob, A (w/ manual)
Castlequest
Code Name: Viper
Desert Commander (complete)
Dirty Harry: The War Against Drugs
Dungeon Magic: Sword of the Elements (complete, like new)
Formula 1: Built to Win
Hoops (complete)
Ice Hockey (complete)
Laser Invasion
Millipede (complete)
Overlord
Racket Attack (complete)
Rambo (complete)
Solstice (complete)
StarTropics (w/ box)
Swords and Serpents (complete)