 | X-Men: Children of the Atom (Hispanic 950331) (clone of: xmcota) | 1994 | Capcom | xmcotah | Fighter / Versus | 0.00 |
| X-Men: Children of the Atom (Japan 941208 rent version) (clone of: xmcota) | 1994 | Capcom | xmcotajr | Fighter / Versus | 0.00 |
| X-Men: Children of the Atom (Japan 941217) (clone of: xmcota) | 1994 | Capcom | xmcotaj3 | | 0.00 |
| X-Men: Children of the Atom (Japan 941219) (clone of: xmcota) | 1994 | Capcom | xmcotaj2 | | 0.00 |
| X-Men: Children of the Atom (Japan 941222) (clone of: xmcota) | 1994 | Capcom | xmcotaj1 | Fighter / Versus | 0.00 |
| X-Men: Children of the Atom (Japan 950105) (clone of: xmcota) | 1994 | Capcom | xmcotaj | Fighter / Versus | 0.00 |
| X-Men: Children of the Atom (USA 950105) (clone of: xmcota) | 1994 | Capcom | xmcotau | Fighter / Versus | 0.00 |
| | X-Plan (Ver. 1.01) | 2006 | Subsino | xplan | | 7.50 |
| | X-s (Bwb) (MPU4) (set 1) | 1969 | Bwb | m4xs | | 0.00 |
| | X-s (Bwb) (MPU4) (set 2) (clone of: m4xs) | 1969 | Bwb | m4xs__a | | 0.00 |
| | X-s (Bwb) (MPU4) (set 3) (clone of: m4xs) | 1969 | Bwb | m4xs__b | | 0.00 |
| | X-s (Bwb) (MPU4) (set 4) (clone of: m4xs) | 1969 | Bwb | m4xs__c | | 0.00 |
| | X-s (Bwb) (MPU4) (set 5) (clone of: m4xs) | 1969 | Bwb | m4xs__d | | 0.00 |
| | X-s (Bwb) (MPU4) (set 6) (clone of: m4xs) | 1969 | Bwb | m4xs__e | | 0.00 |
| | X-s (Bwb) (MPU4) (set 7) (clone of: m4xs) | 1969 | Bwb | m4xs__f | | 0.00 |
| | X-tra X-tra (Maygay) (EPOCH) (1.5, set 1) | 1969 | Maygay | ep_xtra | | 0.00 |
| | X-tra X-tra (Maygay) (EPOCH) (1.5, set 2) (clone of: ep_xtra) | 1969 | Maygay | ep_xtraa | | 0.00 |
| | X-Train (Ver. 1.3) | 1999 | Subsino | xtrain | | 0.00 |
| | X-treme (Bwb) (MPU4) (set 1) | 1969 | Bwb | m4xtrm | | 0.00 |
| | X-treme (Bwb) (MPU4) (set 2) (clone of: m4xtrm) | 1969 | Bwb | m4xtrm__a | | 0.00 |
