Things You'll Need
Instructions
Place the GameShark device in the cartridge slot of the Game Boy Advance. Slide the "Pokemon Emerald" game into the Gameshark slot, label side facing you.
Slide the GameShark power switch to "On" and turn the Game Boy Advance on. You are automatically taken to the "Pokemon Emerald" code list.
Scroll up to "Add New Cheat." Press "B." Use the on-screen keyboard to name the code "Change Player Name." Press "Start."
Select the "Change Player Name" entry and enter the following list of codes:
49B17DAD4E7F
79C3E2C494FE
7AD8B975DCC0
C04F4AC847FF
70D363C080BF
7AC1B975F6C1
Press "Start."
Press "Start" again to begin the game. When the game loads, pause it. Scroll to the right to see your Trainer Card. Highlight your name and press "A." The name selection screen appears.
Enter your new desired name and then select "Done." Your new name is now used on your Trainer Card in and other areas of the game.