Welcome to the cheats for Mike Piazza's StrikeZone for the Nintendo 64. Below are the cheats.
Bonus teams
At the title screen, press C-Right, A, Down, Left.
Hidden message
At the title screen, press C-Up, R, B(2).
View credits
At the title screen, press R, A, Z, R, C-Right, A, B.
Cheat menu
At the pre-game menu, press L, R, L, R. Note: This code must be activated before the other pre-game menu cheats are enabled.