| | Date | System | File release date | Page creation date |
|---|
| 4×4 Off-Roaders (prototype) | | Game Boy Advance | | |
| A Boy and His Blob (Jul 21, 2005 prototype) | | Nintendo DS | | |
| A Boy and His Blob (May 16, 2005 prototype) | | Nintendo DS | | |
| Al Unser Jr.'s Road to the Top (Sega Genesis prototype) | | Sega Mega Drive | | |
| Konami E3 2003 Electronic Press Kit | | Other | | |
| Konami E3 2004 Press Asset Disc | | Other | | |
| GBA Source Code | | Game Boy Advance | | |
| Breach (Prototype) | | Sega Mega Drive | | |
| Dan Marino's Powerplay Football (prototype) | | Sega Mega Drive | | |
| De Blob (October 30, 2008 Nintendo DS Prototype) | | Nintendo DS | | |
| Eggerland: Souzou e no Tabidachi (Prototype) | | FDS | | |
| Freedom Force (Dec 29, 1987 prototype) | | NES | | |
| Garfield: Caught in the Act (The Lost Levels build) | | Sega Mega Drive | | |
| Jurassic Park (prototype) | | SNES | | |
| Lego Stunt Rally (Jun 2, 2000 prototype) | | PlayStation | | |
| Light Crusader (Debugging prototype) | | Sega Mega Drive | | |
| Mickey Mania: The Timeless Adventures of Mickey Mouse (Jul 18, 1994 prototype) | | SNES | | |
| Nick Faldo's Championship Golf (Sega Genesis prototype) | | Sega Mega Drive | | |
| Nuclear Rush (Prototype) | | Sega Mega Drive | | |
| Pirates of the Caribbean: At World’s End (May 19, 2006 prototype) | | Nintendo GameCube | | |
| Popeye in High Seas High-Jinks (prototype) | | Sega Mega Drive | | |
| Pulseman (Apr 1994 prototype) | | Sega Mega Drive | | |
| Raiden Trad (JP Prototype) | | SNES | | |
| Rayman 3 (Prototype A) | | Game Boy Advance | | |
| Sarakon (Prototype) | | Game Boy | | |
| SeaQuest DSV (Prototype) | | Game Boy | | |
| Shadows of the Wind (prototype) | | Sega Mega Drive | | |
| Shantae (Prototype) | | Game Boy Color | | |
| Star Wars: Rebel Strike (Jan 29, 1997 prototype) | | Sega Saturn | | |
| Tarzan: Lord of The Jungle (prototype) | | SNES | | |
| The Chessmaster (prototype) | | Game Boy | | |
| The Sacred Pools (July 25, 1997 Prototype) | | Sega Saturn | | |
| The Sacred Pools (June 16, 1997 prototype) | | PC | | |
| The Sacred Pools (May 12, 1997 Prototype) | | PlayStation | | |
| The Sacred Pools (May 30, 1997 Prototype) | | Sega Saturn | | |
| Towers II: Plight of the Stargazer (Dec 9, 2001 prototype) | | Game Boy Color | | |
| Travis Pastrana's Pro Moto X (prototype) | | Game Boy Advance | | |
| Triumph (Prototype) | | Game Boy | | |
| Viewpoint 2064 (Dec 17, 1999 prototype) | | Nintendo 64 | | |
| WildSnake (Genesis prototype B) | | Sega Mega Drive | | |
| Wrath of the Demon (Sep 1992 prototype) | | Sega Mega Drive | | |
| Yogi Bear Cartoon Capers (Dec 13, 1994 prototype) | | Sega Mega Drive | | |