| | X-change (Bwb) (MPU4) (set 12) (clone of: m4xch) | 1969 | Bwb | m4xch__k | | 0.00 |
| | X-change (Bwb) (MPU4) (set 2) (clone of: m4xch) | 1969 | Bwb | m4xch__a | | 0.00 |
| | X-change (Bwb) (MPU4) (set 3) (clone of: m4xch) | 1969 | Bwb | m4xch__b | | 0.00 |
| | X-change (Bwb) (MPU4) (set 4) (clone of: m4xch) | 1969 | Bwb | m4xch__c | | 0.00 |
| | X-change (Bwb) (MPU4) (set 5) (clone of: m4xch) | 1969 | Bwb | m4xch__d | | 0.00 |
| | X-change (Bwb) (MPU4) (set 6) (clone of: m4xch) | 1969 | Bwb | m4xch__e | | 0.00 |
| | X-change (Bwb) (MPU4) (set 7) (clone of: m4xch) | 1969 | Bwb | m4xch__f | | 0.00 |
| | X-change (Bwb) (MPU4) (set 8) (clone of: m4xch) | 1969 | Bwb | m4xch__g | | 0.00 |
| | X-change (Bwb) (MPU4) (set 9) (clone of: m4xch) | 1969 | Bwb | m4xch__h | | 0.00 |
 | X-Day 2 (Japan) | 1995 | Namco | xday2 | Unplayable | 1.50 |
 | X-Files | 1999 | dgPIX Entertainment Inc. | xfiles | Unplayable | 5.50 |
| | X-Files (2.04) (clone of: xfilesp) | 1997 | Sega | xfiles2 | | 0.00 |
| | X-Files (3.03) | 1997 | Sega | xfilesp | | 0.00 |
 | X-Men (2 Players ver AAA) (clone of: xmen) | 1992 | Konami | xmen2pa | | 0.00 |
| X-Men (2 Players ver EAA) (clone of: xmen) | 1992 | Konami | xmen2pe | | 0.00 |
| X-Men (2 Players ver JAA) (clone of: xmen) | 1992 | Konami | xmen2pj | Fighter / 2.5D | 0.00 |
| X-Men (4 Players ver ADA) (clone of: xmen) | 1992 | Konami | xmena | | 0.00 |
| X-Men (4 Players ver EBA) (clone of: xmen) | 1992 | Konami | xmene | | 0.00 |
| X-Men (4 Players ver JBA) (clone of: xmen) | 1992 | Konami | xmenj | | 0.00 |
| X-Men (4 Players ver UBB) | 1992 | Konami | xmen | Fighter / 2.5D | 8.35 |
