| | Zankor (Italian speech) | 1986 | Zaccaria | zankor | | 0.00 |
 | Zarya Vostoka | 1984 | Nova Games of Canada | zaryavos | Unplayable | 6.71 |
| | Zarza | 1982 | Taito do Brasil | zarza | | 0.00 |
| | Zarza (alternate set) (clone of: zarza) | 1982 | Taito do Brasil | zarza1 | | 0.00 |
 | Zarzon (clone of: satansat) (sample of: vanguard) | 1981 | SNK (Taito America license) | zarzon | Shooter / Gallery | 0.00 |
 | Zaviga | 1984 | Data East Corporation | zaviga | Shooter / Misc. Vertical | 6.17 |
| Zaviga (Japan) (clone of: zaviga) | 1984 | Data East Corporation | zavigaj | Shooter / Misc. Vertical | 0.00 |
 | Zaxxon (Japan) (clone of: zaxxon) (sample of: zaxxon) | 1982 | Sega | zaxxonj | | 0.00 |
| Zaxxon (set 1) (sample of: zaxxon) | 1982 | Sega | zaxxon | Shooter / Flying Diagonal | 8.79 |
| Zaxxon (set 2) (clone of: zaxxon) (sample of: zaxxon) | 1982 | Sega | zaxxon2 | Shooter / Flying Diagonal | 0.00 |
| Zaxxon (set 3) (clone of: zaxxon) (sample of: zaxxon) | 1982 | Sega | zaxxon3 | | 0.00 |
 | Zed Blade / Operation Ragnarok | 1994 | NMK | zedblade | Shooter / Flying Horizontal | 7.70 |
| | Zeke's Peak (clone of: icecold) | 1983 | Taito | zekepeak | | 0.00 |
 | Zektor (revision B) (sample of: zektor) | 1982 | Sega | zektor | Shooter / Field | 0.00 |
 | Zen Nippon Pro-Wrestling Featuring Virtua (J 971123 V1.000) | 1997 | Sega | znpwfv | Wrestling | 7.00 |
| | Zephy | 1969 | LTD | zephy | | 0.00 |
| | Zeppelin (Bellfruit) (Scorpion 1) | 1969 | ELAM | sc1zep | | 0.00 |
| | Zero (Konami Endeavour) | 1969 | Konami | konzero | | 0.00 |
 | Zero (set 1, Defender bootleg) (clone of: defender) | 1980 | bootleg (Jeutel) | zero | Shooter / Flying | 0.00 |
| Zero (set 2, Defender bootleg) (clone of: defender) | 1980 | bootleg (Amtec) | zero2 | | 0.00 |
