How do you put gameshark codes on the gameboy?
First, make sure you update your AR by connecting it to your computer, etc. (You can find all of that in the manual, just make sure that it’s the latest firmware. Once that’s done, start up you AR. Once it’s on the main menu, click that little asterisk in the bottom left corner to select the codes for the current game. You should see a complete list of all the codes currently in your action replay for Pokemon Diamond. At the top, you’ll see an option that clearly states