Universal Chaos (AKA Targ) (1989) (Telegames) (7062 A305)
Unknown Activision Game #1 (10-29-1982) (Activision) (Prototype)
Unknown Activision Game #2 (1983) (Activision) (Prototype)
Unknown Datatech Game (2600 Screen Search Console) (Jone Yuan Telephonic Enterprise Co)
Unknown Universal Game (1983) (Universal) (Prototype)
Up 'n Down (1984) (Sega - Bally Midway - Beck-Tech) (009-01)
