| | Zombie Revenge (JPN, USA, EXP, KOR, AUS) | 1999 | Sega | zombrvn | | 8.83 |
| | Zoo (Ver. ZO.02.D) | 1969 | Astro Corp. | zoo | | 0.00 |
 | Zoo Keeper (set 1) | 1982 | Taito America Corporation | zookeep | Platform / Run Jump | 8.10 |
| Zoo Keeper (set 2) (clone of: zookeep) | 1982 | Taito America Corporation | zookeep2 | Platform / Run Jump | 0.00 |
| Zoo Keeper (set 3) (clone of: zookeep) | 1982 | Taito America Corporation | zookeep3 | Platform / Run Jump | 0.00 |
 | Zoom 909 (clone of: buckrog) (sample of: buckrog) | 1982 | Sega | zoom909 | Shooter / Flying (chase view) | 0.00 |
| | Zooo (V2.01J) | 2004 | Success | zooo | | 7.80 |
| | Zorton Brothers (Los Justicieros) | 1993 | Web Picmatic | zortonbr | | 5.67 |
 | Zunzunkyou No Yabou (Japan) | 1994 | Sega | zunkyou | Shooter / Gallery | 8.50 |
 | Zupapa! | 2001 | SNK | zupapa | Platform / Run Jump | 9.03 |
 | Zwackery | 1984 | Bally Midway | zwackery | Platform / Run Jump | 5.50 |
 | Zzyzzyxx (set 1) | 1982 | Cinematronics / Advanced Microcomputer Systems | zzyzzyxx | Maze | 4.33 |
| Zzyzzyxx (set 2) (clone of: zzyzzyxx) | 1982 | Cinematronics / Advanced Microcomputer Systems | zzyzzyxx2 | | 0.00 |
