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Jon Ritman
| 3D Combat Zone | Sinclair ZX Spectrum | |
| Bat Man | Sinclair ZX Spectrum | |
| Dark Star | Sinclair ZX Spectrum | |
| Forbidden Planet | Sinclair ZX Spectrum | |
| Head Over Heels | Sinclair ZX Spectrum | |
| Head Over Heels (Next) | Sinclair ZX Spectrum | |
| On The Run | Sinclair ZX Spectrum |