Alternate Skies
Enter L, R, L, R at "Today's Game Screen."
Now enter C-Right, A, Z, C-Up, L, R, Z for alternate skies
Aluminium Bats
Go to the "Today's Game Screen" and enter L, R, L, R.
Then: R, A, Z, B, A, L, L for Aluminium Bats.
Colorful Bats
Go to the "Today's Game Screen" and enter L, R, L, R.
Then: R, down, B, A, right for red bats B, L, B, A, right for blue bats
Crazy Ball
Go to the "Today's Game Screen" and enter L, R, L, R.
Now do this: C-Right, A, Z, B, A, L, L.
Crazy Pitch
Go to the "Today's Game Screen" and enter L, R, L, R.
Now do this: C-Right, A, Z, C-Up, R, B for Crazy Pitch.
Credits
Enter the following code at the titles screen to enable a credits option:
R, A, Z, R, C-Right, A, B.
Devil's Thumb Stadium
Go to the "Today's Game Screen" and enter L, R, L, R.
Now do this:
To get the Devil's Thumb Stadium, press right(D-Pad), A, C-Up, L, A.
Easy Homeruns
Go to the "Today's Game Screen" and enter L, R, L, R.
Now do this: Press L, A, down (D-Pad), R to always hit a homerun.
Easy Steals
Go to the "Today's Game Screen" and enter L, R, L, R.
Then: C-Left, A, down, (D-Pad) C-Up, Z for easy steals.
Game Speed
Enter L, R, L, R at "Today's Game Screen."
Now enter L, A, Z, R, B, A, L, L for fast games or up, L, L, B, A, L,
L for slow games.
Gravity Options
Enter L, R, L, R at "Today's Game Screen."
Now enter up, R, A, L for low gravity or: up, down, L, up, R for increased
gravity.
Hidden Messages
At the title screen (the one with Piazza's picture),enter: C-Up, R, B,
B for hidden messages.
Psycho Bats
Go to the "Today's Game Screen" and enter L, R, L, R.
Then: Z, B, R, A for Psycho Bats.
Varied Pitches
Go to the "Today's Game Screen" and enter L, R, L, R.
Now do this: C-Right, A, Z, C-Up, R, L for varied pitches.