Shadowmaster

Shadowmaster cheat codes: 
At the main menu, press F2 + F3. You should see
the message "Cheats On". Now hold + and press
BackSpace for a Cheat Code prompt.

SCOUSER               - Enable playtester keys
TURBO                 - Turbo mode
EVERY LEVEL SAVE      - Can save after every level
ALLOW SINGLE          - Single player on multi-level
PAPARAZZI             - Press Insert to save a Screenshot
(in C:\TEMP\PIX)
THE WHOLE OF CREATION - All cheats off

Playtester keys:

Shift-F9 - Skip level
F11      - Ammo cheat
F12      - Health cheat