Codes

TEAMGOD = Team God Mode
AVATARGOD = Player God Mode
STUMPY = Stumpy Mode On
CLODHOPPER = Enlarges Player's Feet and Hands
MEGANOGGIN = Mega Head Mode
BIGNOGGIN = Big Head Mode
5FINGERDISCOUNT = Refill Ammo
NOBRAINER = Turns AI Off
DEBUGKEYS = Debug Keys Enabled
SILENTBUTDEADLY = ?
FASTACTIONRESPONSETEAM = ?
TURNPUNCHKICK = Changes Players from 3D to 2D
1-900 = Heavy Breathing
EXPLORE = Victory Conditions On/Off

Fly

Press enter while you are playing on any level then type in "debug" then press F10 ,the button, then press peroid and you levitate.

Debug keys

After you have entered "debugkeys" press [F10]

Debug keys Results

F2 Screen shot
F6 Change view
F7 or F8 Commit Suicide
F9 Return to normal view
F12 Level Skip
[or} Adjust lighting
A Toggle Al
V or B Third Person view
, or / Adjust elevation