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找不到游戏，我要补充
| 平台 | ROM名称 | 游戏名称 | 中文名称 | 补充 |
|---|---|---|---|---|
| arcade | ultim809 | Ultim809 | ||
| arcade | ultracin | Waku Waku Ultraman Racing | 奥特曼玩酷赛车 | |
| arcade | ultrainv | Ultra Invaders | 超级侵略者 | |
| arcade | ultraman | Ultraman (Japan) | 奥特曼 - 空想特摄系列 (日版) | |
| arcade | ultramhm | Ultra Maru-hi Mahjong (Japan) | 极秘麻将 (日版) | |
| arcade | ultratnk | Ultra Tank | 终极坦克 | |
| arcade | ultrax | Ultra X Weapons / Ultra Keibitai | 奥特 X 武器 / 奥特警备队 | |
| arcade | ultraxg | Ultra X Weapons / Ultra Keibitai (Gamest review build) | 奥特 X 武器 / 奥特警备队 (Gamest 修正版iew build) | |
| arcade | ultrchmp | Se Gye Hweng Dan Ultra Champion (Korea) | 称霸世界 - 超时空冠军 (韩版) | |
| arcade | ultrchmph | Cheng Ba Shi Jie - Chao Shi Kong Guan Jun (Taiwan) | 称霸世界 - 超时空冠军 (台版) | |
| arcade | um486 | UM486/UM486sx | ||
| arcade | um486v | UM486V-AIO | ||
| arcade | um82c481af | 386 motherboards using the UMC UM82C481AF chipset | ||
| arcade | um82c491f | 386 motherboard using the UMC UM82C491F chipset | ||
| arcade | um82c493f | 386 motherboards using the UMC UM82C491F + UM82C493F chipset or BIOTEQ equivalents | ||
| arcade | um8498f | 486 motherboards using the UMC UM8498F, UM8496F chipset | ||
| arcade | um8810paio | UM8810 PAIO | ||
| arcade | um8886 | 486 motherboards using the UMC UM8886/UM8881 chipset | ||
| arcade | umanclub | Ultraman Club - Tatakae! Ultraman Kyoudai!! | 奥特曼俱乐部 - 战斗! 奥特曼兄弟!! | |
| arcade | umipoker | Umi de Poker / Marine Paradise (Japan) | 海德扑克 / 海洋天堂 (日版) | |
| arcade | umk3 | Ultimate Mortal Kombat 3 (rev 1.2) | 终极真人快打 3 (修正版 1.2) | |
| arcade | umk3r10 | Ultimate Mortal Kombat 3 (rev 1.0) | 终极真人快打 3 (修正版 1.0) | |
| arcade | umk3r11 | Ultimate Mortal Kombat 3 (rev 1.1) | 终极真人快打 3 (修正版 1.1) | |
| arcade | unclepoo | Uncle Poo | Poo 叔叔 | |
| arcade | undefeat | Under Defeat (Japan) (GDL-0035) | 天翔铁骑 (日版) (GDL-0035) | |
| arcade | undoukai | The Undoukai (Japan) | 运动会 84 (日版) | |
| arcade | undrfire | Under Fire (World) | 枪火之下 (世界版) | |
| arcade | undrfirej | Under Fire (Japan) | 枪火之下 (日版) | |
| arcade | undrfireu | Under Fire (US) | 枪火之下 (美版) | |
| arcade | unga | Unga | ||
| arcade | uni386w | 386W 367C REV 1.0 | ||
| arcade | uni4800 | 486 motherboards using the UNI4800 chipset | ||
| arcade | uniap2en | Unitron AP II (in English) | ||
| arcade | uniap2pt | Unitron AP II (in Brazilian Portuguese) | ||
| arcade | uniap2ti | Unitron AP II+ (Teclado Inteligente) | ||
| arcade | unichamp | Champion 2711 | ||
| arcade | unicornd | Unicorn Dreaming (0100791V, NSW/ACT) | 独角兽之梦 连连乐 (0100791V, NSW/ACT) | |
| arcade | unicornda | Unicorn Dreaming (0100813V, NSW/ACT) | 独角兽之梦 连连乐 (0100813V, NSW/ACT) | |
| arcade | unicorndnz | Unicorn Dreaming (0101228V, New Zealand) | 独角兽之梦 连连乐 (0101228V, 新西兰版) | |
| arcade | unicorndu | Unicorn Dreaming (BHG1584, US) | 独角兽之梦 连连乐 (BHG1584, 美版) | |
| arcade | unior | Unior | ||
| arcade | unistar | Unistar 200 Terminal | 联合之星200终端 | |
| arcade | unitron | Mac 512 | ||
| arcade | uniwars | UniWar S | 银河帝国的反击 | |
| arcade | uniwarsa | UniWar S (bootleg) | 银河帝国的反击 (盗版) | |
| arcade | uniwb4407 | 486 WB 4407 REV 1.0 | ||
| arcade | unk1682 | unknown VT1682-based 101-in-1 handheld (PAL) | ||
| arcade | unk2019hh | unknown VTxx based GameBoy style handheld (2019 PCB) | ||
| arcade | unk2020hh | unknown VTxx based GameBoy style handheld (2020 PCB) | ||
| arcade | unk820501 | unknown Cirsa slot machine on 820501 A PCB |