Once again, we've printed cheats for this in the past, but we've never seen these ones before. On the mission computer press Ctrl and F1 together. Now enter one or more of the following case sensitive codes. Correct codes are confirmed with a beep.
Redtop Trod Access all missions on the mission menu
Mother Mourn Us Changes mountains on missions 1-5 to Mt Rushmore with programmers' faces
Chaste Coed View end game sequence
O'Sarge Gives Sergeant in training missions an Irish accent
Swiss Throat Changes citadel building into 7th Level headquarters
A Mere Fart Fart
A Scramble On Take screenshots by pressing Shift, Ctrl, and right mouse click
Range Goes Gory Access all levels and other goodies