Press B, Y, and X to change the icons in the first, second, and third boxes respectively at the match-up screen. 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 B, Y(2), X(3), Left.

Effect Code
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
Maximum speed 0-0-3 Left
Maximum power 0-3-0 Left
Maximum batting 3-0-0 Left
Big heads 2-0-0 Right
Small heads 2-0-0 Left
Unlimited turbo 4-4-4 Down
Extra time after plays 1-2-3 Up
Tournament mode 1-1-1 Down
No fatigue 3-4-3 Up
No contact mode 4-3-3 Left
Rocket Park stadium 3-2-1 Up
Roman Coliseum stadium 3-3-3 Up
Monument stadium 3-3-3 Down
Pinto Team 2-1-0 Right
Horse Team 2-1-1 Right
Lion Team 2-2-0 Right
Eagle team 2-1-2 Right
Todd McFarlane team 2-2-2 Right
Terry Fitzgerald team 3-3-3 Right