Nobunaga no Yabou - Zenkoku Ban (Japan)
Nobunaga's Ambition (USA)
Normy's Beach Babe-O-Rama (USA, Europe)
Olympic Gold (Japan)
Olympic Gold (USA) (Alt)
Olympic Gold (Europe)
Olympic Gold (USA)
Olympic Summer Games (USA, Europe)
On Dal Jang Goon (Korea)
Ooze, The (Japan, USA)
Ooze, The (Europe)
Operation Europe - Path to Victory 1939-45 (USA)
Osomatsu-kun - Hachamecha Gekijou (Japan)
Ottifants, The (Europe)
Ottifants, The (Germany) (Beta)
Out of This World (USA)
Outlander (Europe)
Outlander (USA)
OutRun (Japan)
OutRun 2019 (Europe)
OutRun 2019 (USA)
OutRun 2019 (Japan)
OutRun 2019 (USA) (Beta)
OutRunners (Japan)
OutRunners (USA)
Pac-Attack (USA)
Pac-Man 2 - The New Adventures (USA)
Pac-Mania (USA, Europe)
Pachinko Kuunyan (Japan)
Pacific Theater of Operations (USA)
