To enable Call of Duty cheats in the demo, modify your CoD Single Player shortcut and add the following text in the target field AFTER all the other stuff: "+set monkeytoy 0 +set sv_cheats 1" (without the quotes) Then start the game using that shortcut and press [~] to open the console, in there type: god - God mode give - Gives indicated item give health - Full health notarget - The enemies won't shoot...