Cheat Codes
During gameplay, press ~ for the console window. Then enter any of the following "Codes":
Code - Effect
give life - Extra life
give all - All weapons and items
give ammo - All weapons
give jetpack - Jet pack
give forcefield - Force field
Cheat Codes
Press ~ to bring up the console then type in exec cheats.cfg and press ENTER to activate cheats
Now press a letter below
G - Get Everything
H - Max Ammo
J - Get Jetpack
F - Get Forcefield
L - 1 Extra Life
K - Self-Destruct
I - Invinicibility
P - Pause