Instructions
Insert your GBA game into your Action Replay device. Insert the device into the game slot on your GBA.
Turn on your GBA. Choose the "Select Codes" option from the Action Replay main menu.
Pick the "Yes" option in the main menu if Action Replay does not recognize your game; otherwise skip to Step 4. Enter the name of the game using the on-screen keyboard, followed by any game codes and the name for each code.
Use the "Up" and "Down" buttons on the control pad to browse available codes. Press the "A" button to select codes.
Hit the "Start" button to begin playing your game.