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Games
Ocean Commander - PC
Odysseus: Trojan Warrior - Commodore 64
Off The Wall - Atari 2600
Oh No! - Commodore 64
Omega Five - Xbox 360
Omega Force One - Commodore 64
Omega Race - Atari 2600
Omega Race - Commodore 64
One Piece Land Land - PlayStation 2
Operation C - Game Boy
Operation Hanoi - Commodore 64
Operation Hormuz - Amstrad CPC
Operation Hormuz - Commodore 64
Operation Logic Bomb - SNES
Operation Thunderbolt - Commodore 64
Operation Wolf - Amiga
Operation Wolf - Commodore 64
Operation Wolf - TurboGrafx-16
Operation Wolf 3 - Arcade Games
Orbitron - Commodore 64
Ordyne - TurboGrafx-16
Ordyne - Wii
Oretachi Game Center: Contra - PlayStation 2
Oretachi Game Center: Thunder Cross - PlayStation 2
Osmium - Commodore 64
Otomedius - Arcade Games
Otomedius G - Xbox 360
Ouritsu Edoma Enjin - PC
Out Zone - Arcade Games
Out of this World - Amstrad CPC
Outlaw - Commodore 64
Outlaws - Commodore 64
Over Horizon - NES
Overlander - Commodore 64
Override - Wii
Ozma Wars - Arcade Games