Cheat mode
Hold R + G + K + O then enter one of the following codes to activate the corresponding cheat function. Note: The codes will not function if a joystick is present.
| Full map | [Ctrl] + 1 |
| All weapons | [Ctrl] + 2 |
| Unlimited ammunition | [Ctrl] + 3 |
| No damage | [Ctrl] + 4 |
| Access card for next level | [Ctrl] + 5 |