Buy a Game Shark then the device should allow you to plug in codes.
i DONT ANYgameshark
Easy just put the game in the game shark and enter codes you know.
ther is none inless its on a game shark.
game shark cheat codes are long numbered and lettered codes that you enter on a game shark device that fits is a game boy advance.
You cant, Only you can use a Game Shark.
You Get a game shark for your Gameboy or Gameboy advanced
You'll need a game-shark or other cheat code device. The game itself does not have cheat codes. A game-shark (or game-genie, or whatever) replaces the games original programming with the cheat code data. when the game-shark is inserted into the console, the console will jump to the code screen before actually starting the game.
you will need action replay, game shark, and some other hack thingy.
my thing that says game shark codes it doesnt work do i have to download it or something
No
Game shark codes
http://www.gameshark.com/ The only way you can update it (that I have found out) is to put in new codes. Check this website for the codes! Hope it Helps! Jeff