| Short name | Description | Year | Manufacturer | Runnable | Parent |
|---|---|---|---|---|---|
| mrdrilr2_decrypter | Mr Driller 2 decrypter | No | |||
| ns10_type2_decrypter | Namco System 10 Type 2 decrypter | No | |||
| ns10_type2_decrypter_nonlinear | Namco System 10 Type 2 decrypter (non-linear bit lookup table) | No |