Instructions
Connect your GameShark to your gaming console. For cartridge-based GameSharks, insert the cartridge into the console and connect the game cartridge to the top of the GameShark. For disc-based systems, insert the GameShark into the console and load it as you would any other game.
Turn on your console. The GameShark menu will load.
Enter the code you want to use in the game using your controller. GameShark devices come with a booklet featuring selected codes for selected games. You can also find these codes online at such sites as GameFAQs.com.
Select the "Start Game" option. Cartridge-based consoles will start the game automatically. For disc-based consoles, you must remove the GameShark disc and insert the game disc to begin the game. The code activates once the game starts.