G-Nome cheats and cheat codes for PC

At the Mission computer press Ctrl + F1, then type any of the following 
case-sensitive codes. If the codes are accepted, you should hear a beep. 

Codes - Result:
A Scramble On - Take screen shots by pressing SHIFT + CTRL + RIGHT CLICK
Brass Clue - Amunition Key.
Chaste Coed - View the ending video
DUNK IT HERE - Recording Session Outtakes
Had A Nude On - Invincibility key.
Half Libel - Teleport key.
Horny Elk Leer - All targets on radar key.
Mother Mourn Us - Changes mountain on mission 1-5 to Mt. 
OH NO! LESS JAPAN - Ion-Strike Key
O'Sarge - Gives Seargeant in training missions an Irish accent.
RANGE GOES GORY - All Levels and other stuff
Redtop Trod - Choose all single player missions from the mission Menu.
Rotted Drop - Destroy Target.
Swiss Throat - Changes Citadel building into 7th level headquarters.
        
In-Game-Keys:
CTRL + B - Teleport Behind Target
CTRL + F - Destroy current target
CTRL + I - Invinciblity
CTRL + P - All targets on radar
CTRL + Z - Restore ammo