| | Yabba-Dabba-Dough (Qps) | 1969 | Qps | hb_ydd | | 0.00 |
 | Yachtsman (clone of: mermaid) | 1982 | Sanritsu / Esco | yachtmn | Sports | 0.00 |
 | Yakyuu Kakutou League-Man (Japan) (clone of: nbbatman) | 1993 | Irem | leaguemn | Fighter / 2.5D | 0.00 |
 | Yam! Yam!? | 1990 | Dooyong | yamyam | Puzzle | 6.25 |
 | Yamato (US) | 1983 | Sega | yamato | Shooter / Gallery | 6.00 |
| Yamato (World?) (clone of: yamato) | 1983 | Sega | yamato2 | Shooter / Gallery | 0.00 |
 | Yankee DO! (clone of: mrdo) | 1982 | hack | yankeedo | Maze / Digging | 0.00 |
 | Yellow Cab (bootleg) (clone of: kamikcab) | 1984 | bootleg | yellowcbb | | 0.00 |
| Yellow Cab (Japan) (clone of: kamikcab) | 1984 | Data East Corporation | yellowcbj | | 0.00 |
 | Yes/No Sinri Tokimeki Chart | 1992 | Taito Corporation | yesnoj | Quiz / Japanese | 0.00 |
 | Yie Ar Kung-Fu (GX361 conversion) (clone of: yiear) | 1985 | Konami | yieartf | | 0.00 |
| Yie Ar Kung-Fu (program code G) (clone of: yiear) | 1985 | Konami | yiear2 | Fighter / Versus | 0.00 |
| Yie Ar Kung-Fu (program code I) | 1985 | Konami | yiear | Fighter / Versus | 7.71 |
| | Ying Hua Lian 2.0 (China, Ver. 1.02) | 1998 | Subsino | saklove | | 0.00 |
 | Yo! Noid (PlayChoice-10) | 1990 | Capcom USA (Nintendo of America license) | pc_ynoid | Platform / Fighter Scrolling | 0.00 |
 | Yokai Douchuuki (Japan new version) (clone of: shadowld) | 1987 | Namco | youkaidk | Platform / Shooter Scrolling | 0.00 |
| Yokai Douchuuki (Japan old version) (clone of: shadowld) | 1987 | Namco | youkaidko | | 0.00 |
 | Yosaku To Donbei (set 1) (sample of: invaders) | 1979 | Wing | yosakdon | Shooter / Gallery | 6.00 |
| Yosaku To Donbei (set 2) (clone of: yosakdon) (sample of: invaders) | 1979 | Wing | yosakdona | | 0.00 |
 | Youjyuden (Japan) | 1986 | Irem | youjyudn | Shooter / Walking | 4.75 |
