CheatCodes.com has all the official MLB 09: The Show PSP 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 Wednesday June 19, 2013 for MLB 09: The Show are shown below. We also have this game on PlayStation 2, PSP, PlayStation 3, and sometimes tricks from other game systems will also work on PSP.
First create a player and make his abilities all the way up. Then save to free agents list. Put him on your favorite team then trade him with one of your favorite players from other teams. They will accept the trade because the created player will be really good. Then go to edit player and put his stats all the way down then they will have a player that sucks on their team when you will have your chosen player.
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 PSP game (or any other game you want for any video game system)!