CheatCodes.com has all the official All-Star Baseball 2003 GBA cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Thursday May 23, 2013 for All-Star Baseball 2003 are shown below. We also have this game on PlayStation 2, Xbox, Game Boy Advance, GameCube, and sometimes tricks from other game systems will also work on Game Boy Advance.
If you are a left handed hitter at bat, press R + Left gently, and R + Down gently before the pitch. If you are a right handed hitter at bat, press R + Right (gently), and R + Down (gently) before the pitch.
Press Select when the Pitcher is winding up.
Sometimes cheats for other video game systems also work on Game Boy Advance games. Try All-Star Baseball 2003 on PlayStation 2, Xbox, Game Boy Advance, and GameCube.
Found some tricks that we don't have? Got some helpful hints, tips, or tactics we don't know about? Tell us and you could win a free Game Boy Advance game (or any other game you want for any video game system)!