MVP Baseball 2005 Codes -

All rewards, stadiums, legendary players, and uniforms:
Select the "Create A Player" option. Create a player named Katie Roy (case-sensitive).

Big hitter:
Select the "Create A Player" option. Create a player named keegan paterson, jacob paterson, or isaiah paterson (case-sensitive). The player will have a very large bat. He will hit a home run or a hard line drive every time you make contact, no matter what his stats.

Boston Red Sox St. Patrick's Day jersey:
Select the "Create A Player" option. Create a player named Neverlose Sight (case-sensitive). The special jersey will appear at the jersey selection screen before an exhibition game.

 Increase body size:
Enter kenny lee (case-sensitive) as a created players name to increase and fully change the player's size. Each bicep and other parts of the body can be changed differently from the other.

Bad hitter:
Select the "Create A Player" option. Create a player named erik kiss (case-sensitive). The player will have a skinny bat that will break every time and send a little dribbler to the pitcher for a sure out. Also, you cannot bunt with him; it will just go foul