Mark Jeffries
Name : Mark Jeffries
| Software | Role | Publisher | Type | Year |
|---|---|---|---|---|
| Jet Set Willy: Spectrum Computing | (Unknown) | Spectrum Computing | Arcade: Platform | 1984 |
| Jet Set Willy Editor | (Unknown) | Spectrum Computing | Utility: Game Editor | 1985 |
Name : Mark Jeffries
| Software | Role | Publisher | Type | Year |
|---|---|---|---|---|
| Jet Set Willy: Spectrum Computing | (Unknown) | Spectrum Computing | Arcade: Platform | 1984 |
| Jet Set Willy Editor | (Unknown) | Spectrum Computing | Utility: Game Editor | 1985 |
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