Things You'll Need
Instructions
Pause the game using the start button, then access the cell phone in the pause menu. Enter the number key (#) followed by the corresponding cheat code.
Save the game using two separate files, and save on each of them while advancing through the game. Use cheat codes only on one file and keep the other free from all cheat codes.
Pause the game again to access the cell phone. Enter the same cheat code that had previously been entered to disable the code.