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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 | jumpkun | Jump Kun (prototype) | 跳吧！健仔 (原型版) | |
| arcade | jumppop | Jumping Pop (set 1) | 吸尘小子 (第 1 套) | |
| arcade | jumppope | Jumping Pop (set 2) | 吸尘小子 (第 2 套) | |
| arcade | jumpshot | Jump Shot | 跳跃篮球 | |
| arcade | jumpshotp | Jump Shot Engineering Sample | 跳跃篮球 工程采样版 | |
| arcade | junai | Junai - Manatsu no First Kiss (Japan) | 纯爱 - 盛夏的初吻 (日版) | |
| arcade | junai2 | Junai 2 - White Love Story (Japan) | 纯爱2 - 冬日之恋 (日版) | |
| arcade | jungjuic | Jungle Juice (0200240V, ASP) | 逃亡二人组 (0200240V, 新西兰版) | |
| arcade | jungleby | Jungle Boy (bootleg) | 丛林求生记 - 丛林小子 (盗版) | |
| arcade | jungleh | Jungle Hunt (US) | 丛林求生记 - 丛林探险 (美版) | |
| arcade | junglehbr | Jungle Hunt (Brazil) | 丛林求生记 - 丛林探险 (巴西版) | |
| arcade | junglek | Jungle King (Japan) | 丛林求生记 - 丛林之王 (日版) | |
| arcade | junglekas | Jungle King (alternate sound) | 丛林求生记 - 丛林之王 (声音替换版) | |
| arcade | junglekj2 | Jungle King (Japan, earlier) | 丛林求生记 - 丛林之王 (日版, 最初版) | |
| arcade | junglekj2a | Jungle King (Japan, earlier, alt) | 丛林之王 (日版, 早期版本, alt) | |
| arcade | jungler | Jungler | 蜈蚣谜城 | |
| arcade | junglero | Jungler (Olympia) | 蜈蚣谜城 (Olympia) | |
| arcade | junglers | Jungler (Stern Electronics) | 蜈蚣谜城 (Stern Electronics) | |
| arcade | jungleyo | Jungle (Italy VI3.02) | ||
| arcade | jungsub | Jungler (Subelectro, bootleg on Scramble hardware) | 蜈蚣谜城 (Subelectro, 盗版 Scramble 硬件) | |
| arcade | junior | Junior Computer | ||
| arcade | junior80 | Junior 80 | ||
| arcade | juno106 | Juno-106 Programmable Polyphonic Synthesizer | ||
| arcade | juno6 | Juno-6 (JU-6) Polyphonic Synthesizer | ||
| arcade | junofrst | Juno First | 第一战机 | |
| arcade | junofrstg | Juno First (Gottlieb) | 第一战机 (Gottlieb) | |
| arcade | jupace | Jupiter Ace | ||
| arcade | jupiter2 | Jupiter II | ||
| arcade | jupiter3 | Jupiter III | ||
| arcade | jupk_305 | Jurassic Park (USA 3.05, display A4.00) | 侏罗纪公园 (美版 3.05, display A5.10) | |
| arcade | jupk_307 | Jurassic Park (USA 3.07, display A4.00) | ||
| arcade | jupk_501 | Jurassic Park (USA 5.01, display A5.01) | 侏罗纪公园 (美版 5.01, display A5.01) | |
| arcade | jupk_501g | Jurassic Park (USA 5.01, display G5.01) | 侏罗纪公园 (美版 5.01 德版, display G5.01) | |
| arcade | jupk_513 | Jurassic Park (USA 5.13, display A5.10) | 侏罗纪公园 (美版 5.13, display A5.10) | |
| arcade | jurassic99 | Jurassic 99 (Cadillacs and Dinosaurs bootleg with EM78P447AP) | 侏罗纪 99 (恐龙新世纪 盗版替换 EM78P447AP) | |
| arcade | jv880 | JV-880 Multi Timbral Synthesizer Module | ||
| arcade | jvchc7gb | HC-7E / HC-7GB (MSX1, Europe) | ||
| arcade | jwildb52 | Joker's Wild (B52 system, BP55114-V1104, Ver.054NMV) | 梭哈大师 (B52 system, BP55114-V1104, 版本.054NMV) | |
| arcade | jwildb52a | Joker's Wild (B52 system, WP02001-054, Ver.031WM) | 梭哈大师 (B52 system, WP02001-054, 版本.031WM) | |
| arcade | jwildb52h | Joker's Wild (B52 system, BP55114-V1104, Ver.054NMV, Harrah's GFX) | 梭哈大师 (B52 system, BP55114-V1104, 版本.054NMV, Harrah's GFX) | |
| arcade | jwj403tg | J-403TG | ||
| arcade | jwj446a | J-446A | ||
| arcade | jx10 | JX-10 Super JX Polyphonic Synthesizer | ||
| arcade | jx3p | JX-3P Programmable Preset Polyphonic Synthesizer | ||
| arcade | jx8p | JX-8P Polyphonic Synthesizer (Ver. 3.x) | ||
| arcade | jx8po | JX-8P Polyphonic Synthesizer (Ver. 2.x) | ||
| arcade | jxzh | Jinxiu Zhonghua | ||
| arcade | jy_03 | Junk Yard (0.3) | ||
| arcade | jy_11 | Junk Yard (1.1) | ||
| arcade | jy_12 | Junk Yard (1.2) |