| | World Wars (World?) | 1987 | SNK | worldwar | Shooter / Flying Vertical | 7.50 |
| | X Force | 1987 | Tecnoplay | xforce | | 0.00 |
 | Xenophobe | 1987 | Bally Midway | xenophob | Platform / Shooter Scrolling | 5.53 |
 | Xybots (French, rev 3) (clone of: xybots) | 1987 | Atari Games | xybotsf | Maze / Shooter Large | 0.00 |
| Xybots (German, rev 3) (clone of: xybots) | 1987 | Atari Games | xybotsg | Maze / Shooter Large | 0.00 |
| Xybots (rev 0) (clone of: xybots) | 1987 | Atari Games | xybots0 | Maze / Shooter Large | 0.00 |
| Xybots (rev 1) (clone of: xybots) | 1987 | Atari Games | xybots1 | Maze / Shooter Large | 0.00 |
| Xybots (rev 2) | 1987 | Atari Games | xybots | Maze / Shooter Large | 9.47 |
 | 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 |
