Orlando Magic (Bwb) (MPU4) (set 1)
Osborne-1
Osborne-1 (Nuevo Video)
Oscar (0200348V, NSW/ACT)
Oscar (0100348V, NSW/ACT)
OSCOM Nano
Osman (World)
Otenami Haiken (V2.04J 1999/02/01 18:00:00)
Otenami Haiken Final (V2.07JC 2005/04/20 15:36)
Otenki Kororin (V2.01J 2001/07/02 10:00)
Othello (version 3.0)
Othello Derby (Japan)
Othello Multivision FG-1000
Othello Multivision FG-2000
Othello Shiyouyo (J 980423 V1.002)
Otogizoushi Urashima Mahjong (Japan)
Otona no Mahjong (Japan 880628)
Ougon no Shiro (Japan)
Out Run (Mega-Tech, SMS based)
Out Run (bootleg)
Out Run (sitdown/upright, Rev B)
Out Run (sitdown/upright, Rev A)
Out Run (deluxe sitdown)
Out Run (deluxe sitdown) (Enhanced Edition v1.0.3)
Out Run (sitdown/upright, Rev B) (Enhanced Edition v1.1.0)
Out Zone (old set)
Out Zone
Out Zone (Zero Wing TP-015 PCB conversion)
Out Zone (harder)
Out Zone (older set)
