Start the game with the "+set thereisacow 1337 +set developer 1 +set sv_cheats 1 +set monkeytoy 0" command line parameter. While playing a game, press ~ to display the console window. Enter one of the following codes at the console window to activate the corresponding cheat function. Note: If the game responds "sv_cheats are read only", then type "setrandom sv_cheats 1" in the console before activating the codes.