Start the game with the skip command line parameter.
Cheat mode:
Enter one of the following codes to activate the corresponding cheat
function.
Effect Code
All weapons, temporary invincibility [Ctrl] + R + E + N
Level select [Alt] + L,
Display coordinates [Ctrl] + [Alt] + [Right Shift]
+ [F12]
Teleport [Alt] + =,
Full energy B + I + G
Note: Activating the "Full energy" code will reset your score to 0.
