| | Date | System | File release date | Page creation date |
|---|
| 1943: The Battle of Midway (Prototype B) | | NES | | |
| 1943: The Battle of Midway (Prototype C) | | NES | | |
| A Week of Garfield (Prototype) | | NES | | |
| Addams Family (Aug 2, 1991 prototype) | | NES | | |
| Advanced Dungeons & Dragons: Pool of Radiance (Prototype) | | NES | | |
| Adventures of Rad Gravity (Jul 31, 1990 prototype) | | NES | | |
| Airball (Prototype C) | | NES | | |
| Archon (Prototype) | | NES | | |
| Arkanoid II (Nov 11, 1987 prototype) | | MSX2 | | |
| Arkanoid II (prototype B) | | NES | | |
| Bad News Baseball (Prototype) | | NES | | |
| Bakushou!! Jinsei Gekijou (Early prototype) | | NES | | |
| Bakushou!! Jinsei Gekijou (Oct 13, 1988 prototype) | | NES | | |
| Bases Loaded (Dec 16, 1987 prototype) | | NES | | |
| Bashi Bazook: Morphoid Masher (May 29, 1989 prototype) | | NES | | |
| Battletoads (Prototype) | | NES | | |
| Beyond Zero Tolerance (Jul 14, 1995 prototype) | | Sega Mega Drive | | |
| Bionic Commando (Prototype) | | NES | | |
| Bubsy II (Jul 12, 1994 prototype) | | SNES | | |
| Buzz & Waldog (Prototype B) | | NES | | |
| Buzz & Waldog (Prototype) | | NES | | |
| Caltron 9-in-1 (Prototype) | | NES | | |
| Caveman Ninja: Joe & Mac (Prototype) | | NES | | |
| Chester Field: Ankoku Shin heno Chousen (US prototype) | | NES | | |
| Chip's Challenge (v0.924B prototype) | | NES | | |
| Club Drive (Prototype) | | Atari Jaguar | | |
| Color Dreams Color Test | | NES | | |
| Crossbow (Early prototype) | | NES | | |
| Cygnus Force (prototype) | | NES | | |
| D-Force (Prototype) | | SNES | | |
| Day Dreamin' Davey (Prototype) | | NES | | |
| Death Race (prototype) | | NES | | |
| Defenders of Dynatron City (Prototype) | | NES | | |
| Dino Hockey (Dec 18, 1990 prototype) | | NES | | |
| Dominus (Prototype) | | Sega Mega Drive | | |
| Dropzone (Oct 6, 1992 prototype) | | NES | | |
| F-117A Stealth Fighter (Jul 9, 1992 prototype) | | NES | | |
| F-15 Strike Eagle (Prototype) | | NES | | |
| Ferrari Grand Prix Challenge (Prototype) | | NES | | |
| Fester's Quest (Prototype) | | NES | | |
| Fighting Simulator World Champ (Prototype) | | NES | | |
| Final Fantasy II (US Prototype) | | NES | | |
| Flight of the Intruder (Prototype) | | NES | | |
| Galaga (1983 Atari prototype) | | NES | | |
| Galaxy 5000: Racing in the 51st Century (Prototype B) | | NES | | |
| Golf Grand Slam (Prototype) | | NES | | |
| Gun.Smoke (Prototype) | | NES | | |
| Hatris (Prototype B) | | NES | | |
| High Speed (Feb 28, 1991 prototype) | | NES | | |
| Hit the Ice (May 11, 1992 prototype) | | Game Boy | | |
| Hit the Ice (Prototype A) | | NES | | |
| Hydra (Atari Lynx prototype) | | Atari Lynx | | |
| Irem Skins Game (Prototype) | | SNES | | |
| Jerry Glanville's Pigskin Footbrawl (SNES prototype) | | SNES | | |
| Jordan vs Bird: One on One (Prototype) | | NES | | |
| Kawasaki Superbike Challenge (SNES prototype) | | SNES | | |
| Kick Off (Prototype) | | NES | | |
| Kid Klown in Night Mayor World (Prototype) | | NES | | |
| King Arthur's World (Oct 21, 1992 prototype) | | SNES | | |
| Kitty's Catch (Prototype B) | | NES | | |
| Kiwi Kraze (Prototype) | | NES | | |
| KlashBall (Prototype) | | NES | | |
| Kyuukyoku Harikiri Stadium (Prototype) | | NES | | |
| Legendary Wings (Prototype) | | NES | | |
| Little Nemo: The Dream Master (Prototype) | | NES | | |
| Low G Man: The Low Gravity Man (Prototype) | | NES | | |
| M.C. Kids (Prototype B) | | NES | | |
| Magi Cube (prototype) | | NES | | |
| Magic Darts (Prototype) | | NES | | |
| Magic Johnson's Fast Break (Prototype) | | NES | | |
| Magical Puzzle Popils (Incomplete prototype) | | NES | | |
| Magician (Prototype D) | | NES | | |
| Marble Madness (Prototype) | | NES | | |
| Maxivision 30-in-1 Super Games (Aug 9, 1991 prototype) | | NES | | |
| Mickey's Ultimate Challenge (Aug 25, 1993 prototype) | | SNES | | |
| Mike Tyson's Punch-Out!! (prototype) | | NES | | |
| Mini-Putt (Prototype) | | NES | | |
| Mountain Sports (May 12, 1993 prototype) | | Sega Mega Drive | | |
| Ninja Crusaders (Prototype) | | NES | | |
| Overlord (Prototype) | | NES | | |
| Pac-Man (Prototype) | | NES | | |
| Pac-Man (Unlicensed prototype) | | NES | | |
| Pescatore (prototype) | | NES | | |
| Pinball Quest (US prototype) | | NES | | |
| Pipe Dream (Prototype) | | NES | | |
| Police Academy (Nov 30, 1990 prototype) | | NES | | |
| Power Drive Rally (prototype) | | Atari Jaguar | | |
| Power Punch II (Prototype) | | NES | | |
| Prince of Persia (Mega Drive prototype C) | | Sega Mega Drive | | |
| Rad Racket: Deluxe Tennis II (Prototype) | | NES | | |
| Rally Bike (Prototype A) | | NES | | |
| Rampage: World Tour (Game Boy Color prototype) | | Game Boy Color | | |
| RoboCop 2 (Prototype) | | NES | | |
| Rygar (Prototype) | | NES | | |
| S.C.A.T.: Special Cybernetic Attack Team (Prototype B) | | NES | | |
| Scanner (Prototype) | | NES | | |
| Scarabeus (Prototype) | | NES | | |
| Secret Ties (prototype) | | NES | | |
| Shadowgate (NES Prototype) | | NES | | |
| Shadowrun (Jan 5, 1993 prototype) | | SNES | | |
| Slapstick (US prototype) | | SNES | | |
| Solomon's Key (Prototype) | | NES | | |
| Spy vs Spy: The Island Caper (Prototype) | | NES | | |
| Squashed (US prototype) | | NES | | |
| Stanley: The Search for Dr. Livingston (Prototype B) | | NES | | |
| Street Fighter 2010: The Final Fight (Prototype) | | NES | | |
| Sunman (Early Superman Prototype) | | NES | | |
| Sunman (Prototype) | | NES | | |
| Super Bases Loaded (Prototype) | | SNES | | |
| Super Earth Defense Force (Prototype) | | SNES | | |
| Super Glove Ball (Prototype) | | NES | | |
| Super Mario Bros. + Duck Hunt + World Class Track Meet (Prototype) | | NES | | |
| Sword Master (May 15, 1991 prototype) | | NES | | |
| Takeshi no Sengoku Fuuunji (Jun 4, 1988 prototype) | | NES | | |
| Taro's Quest (US prototype) | | NES | | |
| Tecmo Cup: Soccer Game (Prototype) | | NES | | |
| Terra Cresta (Dec 28, 1987 prototype) | | NES | | |
| The Addams Family: Pugsley's Scavenger Hunt (NES Prototype) | | NES | | |
| The Addams Family: Pugsley's Scavenger Hunt (SNES Prototype B) | | SNES | | |
| The Blues Brothers (Prototype) | | NES | | |
| The California Raisins: The Grape Escape (Prototype B) | | NES | | |
| The Jetsons: Cogswell's Caper (Prototype) | | NES | | |
| The Lawnmower Man (Early SNES prototype) | | SNES | | |
| The Lawnmower Man (Jun 23, 1993 prototype) | | Sega Mega Drive | | |
| The Trolls in Crazyland (Jul 9, 1992 prototype) | | NES | | |
| Thomas the Tank Engine & Friends (NES Prototype) | | NES | | |
| Time Diver: Eon Man (Prototype) | | NES | | |
| Titan Warriors (Prototype B) | | NES | | |
| Trolls on Treasure Island (May 26, 1992 prototype) | | NES | | |
| Trolls on Treasure Island (Prototype) | | NES | | |
| Ultimate Air Combat (Aug 14, 1991 prototype) | | NES | | |
| Unknown (NES CHR prototype) | | NES | | |
| Utopia: The Creation of a Nation (Prototype B) | | SNES | | |
| Vice: Project Doom (Prototype) | | NES | | |
| WWF Wrestlemania: Steel Cage Challenge (Prototype) | | NES | | |
| War on Wheels (Nov 27, 1990 prototype) | | NES | | |
| Wayne Gretzky and the NHLPA All-Stars (Atari Jaguar prototype) | | Atari Jaguar | | |
| Wheel of Fortune Featuring Vanna White (Prototype) | | NES | | |
| Where in Time is Carmen Sandiego (Prototype) | | SNES | | |
| Whomp 'Em (Prototype) | | NES | | |
| Wizardry: Knight of Diamonds - The Second Scenario (prototype) | | NES | | |
| Zombie Nation (Prototype) | | NES | | |