MAME 2015 (Page 210)
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OutRunners World
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OutRunners Japan
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OutRunners US
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Psycho-Nics Oscar World revision 0
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Psycho-Nics Oscar Japan revision 1
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Psycho-Nics Oscar Japan revision 2
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Psycho-Nics Oscar US
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Osman World
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Disco Mahjong Otachidai no Okite Japan
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Othello Shiyouyo J 980423 V1.002
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Othello Derby Japan
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Operation Thunderbolt World
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Operation Thunderbolt Japan
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Operation Thunderbolt US
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Operation Thunderbolt US older
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Otona no Mahjong Japan 880628
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Off the Wall Sente
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The Outfoxies World OU2
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The Outfoxies Japan OU1
Outline
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Out Run sitdown/upright Rev B
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Out Run bootleg
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Out Run deluxe sitdown
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