MVP Baseball 2005 cheats and cheat codes for XBox

Go to the Create-A-Player option, then enter the following 
case-sesitive codes:

Unlock all rewards, outfits, stadiums and legendary players: 
Enter "Katie Roy"

Bad batter: Enter "Erik Kiss"
After you created "Erik Kiss", increase his stats full. Then try to trade him 
to a rival team. If you traded him succefully, go to "Locate A Created Player" 
option, and reduce his stat. Your opponent will have a really bad player.

More broken bats
Enter "Les Kram", "Mark Curran" or "G Clark" 

Bigger body
Enter "Kenny Lee", "Benny Lee", or "Teddy Lee" to increase the size of body.

Unlock Boston Red Sox St. Patrick's Day jersey
Enter "Neverlose Sight"

Unlock Player with large bat. He always hit a home run:
Enter "Jacob Paterson", "Keegan Paterson" or "Isaiah Paterson"

Small player with big bat
Enter "Sean Paterson" or "Avery Larmour" 

Unlock Legends Team:
Unlock each of the 25 Legends Team players. 

Unlock Heroes Team:
Unlock each of the 25 Heroes Team players. 

Unlock Making of Owner Mode feature:
Purchase all stadium upgrades in owner mode. 

Power hitter team:
Enable the Katie Roy cheat code or unlock them and 
create the following teams:

Al Kaline
Alex Rodriguez
Babe Ruth
Billy Williams 
Derek Jeter
Honus Wanger
Jason Giambi
Johny Bench
Lou Gehrig
Mickey Mantle
Mike Schmidt
Phil Johnson
Ty Cobb