| Oriental Legend / Xi You Shi E Zhuan (ver. 126) | 1997 | IGS | orlegend | Fighter / 2.5D | 5.74 |
| Oriental Legend / Xi You Shi E Zhuan (ver. ???, Chinese Board) (clone of: orlegend) | 1997 | IGS | orlegendca | | 0.00 |
| Oriental Legend 2 (V103, China) (clone of: orleg2) | 2007 | IGS | orleg2o | | 0.00 |
| Oriental Legend 2 (V104, China) | 2007 | IGS | orleg2 | | 5.67 |
| Oriental Legend Special / Xi You Shi E Zhuan Super (ver. 100, set 1) (clone of: olds) | 1998 | IGS | olds100 | Unplayable | 0.00 |
| Oriental Legend Special / Xi You Shi E Zhuan Super (ver. 100, set 2) (clone of: olds) | 1998 | IGS | olds100a | Unplayable | 0.00 |
| Oriental Legend Special / Xi You Shi E Zhuan Super (ver. 101, Korean Board) | 1998 | IGS | olds | Unplayable | 4.86 |
| Oriental Legend Special Plus / Xi You Shi E Zhuan Super Plus | 2004 | IGS | oldsplus | | 7.00 |
| Orlando Magic (Bwb) (MPU4) (set 1) | 1969 | Bwb | m4orland | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 2) (clone of: m4orland) | 1969 | Bwb | m4orland__a | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 3) (clone of: m4orland) | 1969 | Bwb | m4orland__b | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 4) (clone of: m4orland) | 1969 | Bwb | m4orland__c | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 5) (clone of: m4orland) | 1969 | Bwb | m4orland__d | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 6) (clone of: m4orland) | 1969 | Bwb | m4orland__e | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 7) (clone of: m4orland) | 1969 | Bwb | m4orland__f | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 8) (clone of: m4orland) | 1969 | Bwb | m4orland__g | | 0.00 |
| Orlando Magic (Bwb) (MPU4) (set 9) (clone of: m4orland) | 1969 | Bwb | m4orland__h | | 0.00 |
| Osman (World) | 1996 | Mitchell | osman | Unplayable | 8.00 |
| Otenami Haiken (V2.04J) | 1999 | Success | otenamih | | 0.00 |
| Otenami Haiken Final (V2.07JC) | 2005 | Success / Warashi | otenamhf | | 0.00 |