Things You'll Need
Instructions
Insert your Action Replay memory card into the left memory card slot on the front of your GameCube. Insert the Action Replay disc into the GameCube's disc compartment. Turn the GameCube on.
Select the "Action Replay Codes" option in the Action Replay game menu.
Select the 'Resident Evil 4" option in the codes menu. Select the code you would like to turn off, and press the "A" button to turn the code off. If the code is already off, pressing the "A" button will turn the code on.
Press the "Start" button to save your code settings, and remove the Action Replay disc from the GameCube's disc compartment when prompted. Insert the "Resident Evil 4" disc into the GameCube to begin playing the game with your codes turned off.