At the match-up screen, press Square, X, and Circle to change the icons in the first, second, and third boxes respectively. The numbers in the following list indicate the number of times each button is pressed. After the icons have been changed, press the D-pad in the indicated direction to enable the code. For example, to enter 1-2-3 Left, press Square, X(2), Circle(3), Left. Note: More then one code may be activated per game.
 
Result Code
Infinite turbo 4-4-4 Down
Maximum speed 0-0-3 Left
Maximum power 0-3-0 Left
Maximum batting 3-0-0 Left
Rocket Park stadium 3-2-1 Up
Roman Coliseum stadium 3-3-3 Up
Eagle team 2-1-2 Right
Horse team 2-1-1 Right
Lion team 2-2-0 Right
Pinto team 2-1-0 Right
Todd McFarlane team 2-2-2 Right
Terry Fitzgerald team 3-3-3 Right
Extra time after plays 1-2-3 Up
No fatigue 3-4-3 Up
No contact 4-3-3 Left
Log bat 0-0-4 Up
Wiffle bat 0-0-4 Right
Mace bat 0-0-4 Left
Rubber ball 2-4-2 Up
Softball 2-4-2 Down
Big heads 2-0-0 Right
Small heads 2-0-0 Left
Tournament mode 1-1-1 Down
-From: Weathered262@aol.com, ryan_bussell@hotmail.com, and Trsmith43@aol.com
Game Shark Codes
Master Code (Must Be On) 0E3C7DF2 1853E59EEE8D96B6 BCD998AA
Home Team Score 0 CEA1CDBE BCA99B83
Home Team Score 20 CEA1CDBE BCA99B97
Away Team Score 0 CEA1CDBA BCA99B83
Away Team Score 20 CEA1CDBA BCA99B97
1 Out Per Inning 0EA1CD6E BCA99B83CEA1CD6E BCA99B85
2 Outs Per Inning 0EA1CD6E BCA99B83CEA1CD6E BCA99B84
1 Strike = Out 0EA1CD66 BCA99B83CEA1CD66 BCA99B85
2 Strikes = Out 0EA1CD66 BCA99B83CEA1CD66 BCA99B84
1 Ball = Walk 0EA1CD62 BCA99B83CEA1CD62 BCA99B86
2 Balls = Walk 0EA1CD62 BCA99B83CEA1CD62 BCA99B85
3 Balls = Walk 0EA1CD62 BCA99B83CEA1CD62 BCA99B84
Home Team Codes
Infinite Turbo CEA1EFD8 BCA9DD4B
No Turbo CEA1EFD8 BCA9DB83
1 Out Per Inning 0EA1D0FA BCA99B840EA1CD6E BCA99B83CEA1CD6E BCA99B85
2 Outs Per Inning 0EA1D0FA BCA99B840EA1CD6E BCA99B83CEA1CD6E BCA99B84
1 Strike = Out 0EA1D0FA BCA99B840EA1CD66 BCA99B83CEA1CD66 BCA99B85
2 Strikes = Out 0EA1D0FA BCA99B840EA1CD66 BCA99B83CEA1CD66 BCA99B84
1 Ball = Walk 0EA1D0FA BCA99B840EA1CD62 BCA99B83CEA1CD62 BCA99B86
2 Balls = Walk 0EA1D0FABCA99B840EA1CD62BCA99B83CEA1CD62BCA99B85
3 Balls = Walk 0EA1D0FA BCA99B840EA1CD62 BCA99B83CEA1CD62 BCA99B84
Press L1 + L2 For Advantage 0EA12AF8 BCA99582CEA1CDBE BCA99B970EA12AF8 BCA99582CEA1CDBA BCA99B83
Away Team Codes
Infinite Turbo CEA1EFE4 BCA9DD4B
No Turbo CEA1EFE4 BCA9DB83
1 Out Per Inning...