Things You'll Need
Instructions
Place your "Pokemon Ruby" cartridge in the cartridge slot of your GameShark unit.
Put the GameShark unit in your Gameboy Advance's cartridge slot.
Flip Gameshark switch to on and power up the Gameboy Advance.
Select "Enter New Code" from the Gameshark menu and input either of the following codes: 280ea266 or 88a62e5c.
Travel to a Pokemon Center or other PC location. If you look in your item box, you will find a "Rare Candy." Repeat the code as often as you like, earning unlimited "Rare Candies."