Here are some cheats and tips for the game All Star Baseball 2003.
Cheat menu:
Press L at the controller selection screen to activate
cheats that have been bought.
Taunt opponents:
On your way home after hitting a homerun, press L, R,
Black, White, B, X, or Y and your player will
taunt the opposing team.
When you round third base and headed for home after a
homerun, click Left Analog-stick + click
Right Analog-stick to taunt the other team.