| Kyros | 1987 | Alpha Denshi Co. (World Games Inc. license) | kyros | Fighter / Vertical | 7.50 |
| Kyros No Yakata (Japan) (clone of: kyros) | 1986 | Alpha Denshi Co. | kyrosj | Fighter / Vertical | 0.00 |
| Kyukyoku no Hito [BET] (Japan 880824) (clone of: kanatuen) | 1988 | Roller Tron | kyuhito | Tabletop / Mahjong *Mature* | 0.00 |
| Kyukyoku Sentai Dadandarn (ver JAA) (clone of: mmaulers) | 1993 | Konami | dadandrn | Fighter / Versus Co-op | 0.00 |
| Kyukyoku Tiger (Japan) (clone of: twincobr) | 1987 | Toaplan / Taito Corporation | ktiger | Shooter / Flying Vertical | 0.00 |
| Kyukyoku Tiger II (Ver 2.1J 1995/11/30) (clone of: tcobra2) | 1995 | Taito Corporation | ktiger2 | Shooter / Flying Vertical | 0.00 |
| Kyuukai Douchuuki (Japan new version) | 1990 | Namco | kyukaidk | Sports / Baseball | 0.00 |
| Kyuukai Douchuuki (Japan old version) (clone of: kyukaidk) | 1990 | Namco | kyukaidko | | 0.00 |
| Kyuukyoku no Othello | 1990 | Success | kothello | Tabletop / Othello | 0.00 |
| KZ-26 | 1984 | Playmatic | kz26 | | 0.00 |