Mike Piazza's StrikeZone Cheats - Nintendo 64

Cheat menu
Press [L], [R], [L], [R] at the pre-game menu. Note: This code must be activated before the other pre-game menu cheats are enabled.

Devil's Thumb stadium
Press [Right], [A], [C-Up], [L], [A] at the pre-game menu.

Super players
Press [B], [A], [R], [B], [A], [L]x2 at the pre-game menu.

Better throws by fielders
Press [B], [A], [L], [Down], [Z] at the pre-game menu.

Better plays by fielders
Press [B], [A], [R], [Down], [L], [B] at the pre-game menu.

Faster fielders
Press [R], [A], [Z], [L], [Down], [A], [Z], [L] at the pre-game menu.

Better pitches
Press [B], [L], [A], [B], [R], [Z] at the pre-game menu.

Faster pitches
Press [R], [A], [Z], [L], [Down] at the pre-game menu.

Crazy pitches
Press [C-Right], [A], [Z], [C-Up], [R], [B] at the pre-game menu.

Varied pitches
Press [C-Right], [A], [Z], [C-Up], [R], [L] at the pre-game menu.

Always hit home runs
Press [L], [A], [Down], [R] at the pre-game menu

Crazy ball
Press [C-Right], [A], [Z], [B], [A], [L]x2 at the pre-game menu.

Easy steals
Press [C-Left], [A], [Down], [C-Up], [Z] at the pre-game menu.

Aluminum bats
Press [R], [A], [Z], [B], [A], [L]x2 at the pre-game menu.

Red bats
Press [R], [Down], [B], [A], [Right] at the pre-game menu.

Blue bats
Press [B], [L], [B], [A], [Right] at the pre-game menu.

Psychedelic bats
Press [Z], [B], [R], [A] at the pre-game menu.

Low gravity
Press [Up], [R], [A], [L] at the pre-game menu.

Increased gravity
Press [Up], [Down], [L], [Up], [R] at the pre-game menu.

Fast game
Press [L], [A], [Z], [R], [B], [A], [L]x2 at the pre-game menu.

Slow game
Press [Up], [L]x2, [B], [A], [L]x2 at the pre-game menu.

Alternate sky
Press [C-Right], [A], [Z], [C-Up], [L], [R], [Z] at the pre-game menu.

Bonus teams
Press [C-Right], [A], [Down], [Left] at the title screen.

Hidden message
Press [C-Up], [R], [B]x2 at the title screen.

View credits
Press [R], [A], [Z], [R], [C-Right], [A], [B] at the title screen.

Beanball
Hold the D-pad towards the batter while pitching to throw a beanball.

Hint Avoid beanball
Press A to check your swing while a beanball is on the way to the plate.

Intentional walk
Hold the D-pad away from the batter while pitching. The batter will walk after the pitch-out.

Easy strikeouts
Enable the "Crazy pitches" code, throw a beanball, then move the Analog-stick into the strike zone. If done correctly, the batter will not swing.