Cheat Codes:
Press [Left Shift]   [F11] during game play, then enter one of the following codes to activate the corresponding cheat:
CHEAT FUNCTION – CHEAT CODE
Stop time – timeless 
View dialogs – fidel castro 
Toggle victory condition display – epitaph 
Toggle hint display – medic 
Toggle short briefings – whats my destiny 
Toggle sound zone display – supersonic 
New weapon – powerman 
Exit gane – schneider 
Win current level – clint 
Ammunition – jackal 
All objects displayed – show me all 
Toggle invisibility – hollow man 
Press [Alt] to kill enemies with flashlight – zeus 
Able to sneak behind enemies – behind the enemy horse 
Frog:
On Doc’s training level, get to the part where you have to “double up”, which means using the coat as a decoy. Place it on the small dock where you shot the boat from and watch. You will see the screen scroll across to where you shot the boat. Suddenly the boat will rise and hover, and a frog will jump off. At a later point, John Cooper will walk up to you and say “May the force be with you”.
Easy kills:
Use the following trick to kill a lone enemy. It may also work if there are two enemies, if one of them gives up on you and leaves his partner to fight. Mark John Cooper and learn the enemy and his movements. Run into his visible area. When he notices you, take the knife and stab him when he gets close enough. Be careful; if he punches you before you stab him you will lose.
How to defeat the Devil:
During mission 25 when fighting the Devil, you must do over 1,000 damage to him for the stairs to drop down. Then, take the knife from the chair and stab the Devil with it for 666 damage.
Star Wars reference:
Play the mission where you are testing Dr McCoy’s abilities. Place the scarecrow at the sunken boat, then place it at the edge of the dock. McCoy will then position the scarecrow, then walk to the end of the dock and raise his hand. The boat will rise out of the water and be deposited on the bank. Cooper will then walk over and say “May the force be with you, young McCoy”, a reference to the scene in Star Wars: The Empire Strikes Back where Luke Skywalker uses the force to retrieve his Starfighter from the swamp on Dagobah.
