CheatCodes:
Enter one of the following during game:
IDDQD -- God mode.
IDKFA -- full ammo, 200% armor, all weapons.
IDSPISPOPD -- You can walk through walls.
IDBEHOLD -- Displays menu (Followed by S, V, I, R, A or L).
IDCLEVxy -- Warp to episode x (1-3), level y (1-9).
IDMYPOS -- Shows your coordinates in hex.
IDCHOPPERS -- Gives you shainsaw.
IDDT -- Changes the map view between normal, full and full with objects.
