Instructions
Place the Gameshark into the Gameboy Advance game slot. Make sure the Gameshark device is secure.
Insert the "Kingdom Hearts: Chain of Memories" game into the Gameshark device. Lock the game tightly into the Gameshark to ensure it is secure.
Turn on the Gameshark device. Look for the power switch on the right side of the Gameshark. Turn on the Gameboy Advance console.
Wait for the Gameshark introduction screen to load. Choose "Kingdom Hearts: Chain of Memories" from the list of games, or select the "New Game" to add it in.
Make sure the master code is in the system and turned on. Write in the master code if it is not present. Each code segment is a new line: "982771635219," "14E939BACB07" and "CA1652502C44." Check the resource section for a list of useable cheat codes.