MAME ROM (O)
0-9 A B C D E F G H I J K M N O P Q R S T U V W X Y Z
» Off Road Challenge (1997; Midway)
» Off the Wall (2-player cocktail) (1991; Atari Games)
» Off the Wall (2/3-player upright) (1991; Atari Games)
» Off the Wall (Sente) (1984; Bally/Sente)
» Oh My God! (Japan) (1993; Atlus)
» Ohgon no Siro (Japan) (1986; Taito Corporation)
» Oigas (bootleg) (1986; bootleg)
» Oishii Puzzle Ha Irimasenka (1993; Sunsoft + Atlus)
» Ojanko Club (Japan) (1986; V-System Co.)
» Ojanko High School (Japan) (1988; V-System Co.)
» Ojanko Yakata 2bankan (Japan) (1987; V-System Co.)
» Ojanko Yakata (Japan) (1986; V-System Co.)
» Ojousan [BET] (Japan 870108) (1987; Nichibutsu)
» Ojousan (Japan 871204) (1987; Nichibutsu)
» Oli-Boo-Chu (1981; Irem + GDI)
» Olympic Soccer '92 (1992; Seibu)
» Omega (19??; bootleg?)
» Omega Fighter (1989; UPL)
» Omega Fighter Special (1989; UPL)
» Omega Race (1981; Midway)
» Omni (19??; bootleg)
» Omotesandou (Japan 890215) (1989; ANIME TEC)
» One Shot One Kill (19??;
» One + Two (1997; Barko)
» One + Two (earlier) (1997; Barko)
» Oni - The Ninja Master (Japan) (1995; Banpresto/Pandorabox)
» Onna Sansirou - Typhoon Gal (set 1) (1985; Taito)
» Onna Sansirou - Typhoon Gal (set 2) (1985; Taito)
» Opa Opa (MC-8123, 317-0042) (1987; Sega)
» Operation Bear (1987; bootleg)
» Operation Thunder Hurricane (ver UAA) (1996; Konami)
» Operation Thunderbolt (Japan) (1988; Taito Corporation)
» Operation Thunderbolt (US) (1988; Taito America Corporation)
» Operation Thunderbolt (US, older) (1988; Taito America Corporation)
» Operation Thunderbolt (World) (1988; Taito Corporation Japan)
» Operation Wolf 3 (US) (1994; Taito America Corporation)
» Operation Wolf 3 (World) (1994; Taito Corporation Japan)
» Operation Wolf (US) (1987; Taito America Corporation)
» Operation Wolf (World) (1987; Taito Corporation Japan)
» Orange Club - Maru-hi Ippatsu Kaihou [BET] (Japan 880221) (1988; Daiichi Denshi)
» Orange Club - Maruhi Kagai Jugyou (Japan 880213) (1988; Daiichi Denshi)
» Orbit (1978; Atari)
» Orbitron (19??; Signatron USA)
» Ordyne (Japan) (1988; Namco)
» Ordyne (Japan, English Version) (1988; Namco)
» Oriental Legend Super / Special (100) (1999; IGS)
» Oriental Legend Super / Special (100 alt) (1999; IGS)
» Oriental Legend Super / Special (Korea 101) (1999; IGS)
» Oriental Legend / Xi Yo Gi Shi Re Zuang (ver. 105, Korean Board) (1997; IGS)
» Oriental Legend / Xi Yo Gi Shi Re Zuang (ver. 111, Chinese Board) (1997; IGS)
» Oriental Legend / Xi Yo Gi Shi Re Zuang (ver. 112) (1997; IGS)
» Oriental Legend / Xi Yo Gi Shi Re Zuang (ver. 112, Chinese Board) (1997; IGS)
» Oriental Legend / Xi Yo Gi Shi Re Zuang (ver. 126) (1997; IGS)
» Osman (World) (1996; Mitchell)
» Othello Derby (Japan) (1995; Sunwise)
» Othello Shiyouyo (J 980423 V1.002) (1998; Success)
» Otona no Mahjong (Japan 880628) (1988; Apple)
» Out Run (bootleg) (1986; bootleg)
» Out Run (deluxe sitdown) (1986; Sega)
» Out Run (Mega-Tech) (1989; Sega)
» Out Run (sitdown/upright, Rev A) (1986; Sega)
» Out Run (sitdown/upright, Rev B) (1986; Sega)
» Out Zone (set 1) (1990; Toaplan)
» Out Zone (set 2) (1990; Toaplan)
» Out Zone (set 3, prototype?) (1990; Toaplan)
» Out Zone (set 4) (1990; Toaplan)
» Outfoxies (1994; Namco)
» Outfoxies (Japan) (1994; Namco)
» Outline (1982; Century Electronics)
» OutRunners (US) (1992; Sega)
» OutRunners (World) (1992; Sega)
» Over Drive (1990; Konami)
» Over Rev (1997; Jaleco)
» Over Top (1996; ADK)
» Ozma Wars (set 1) (1979; SNK)
» Ozma Wars (set 2) (1979; SNK)
» Ozon I (1983; Proma)