Unlock Big head mode:
Win the World Series under the rookie difficulty setting. Then, create a player
with the name CODE BIGGHEDZ.
Unlock CPU vs. CPU mode:
Win the World Series under the all-star difficulty setting. Then, create a player
with the name CODE CPUVSCPU.
Unlock Tick team:
Win the World Series under the veteran difficulty setting. Then, create a player
with the name CODE THETICK.
Unlock Full attributes:
Create a player with the name CODE SUPERHUMAN.
Unlock Big bats:
Create a player with the name CODE PHATTBATT.
Unlock Flat team:
Create a player with the name CODE STEAMROLLED.
Unlock Big feet:
Create a player with the name CODE BIGFEET.
Unlock invisible team:
Create a player with the name CODE INVISIBLEMAN.
Unlock Thin team:
Create a player with the name CODE TOOTHPICK.
Unlock Small team:
Create a player with the name CODE LIDDLELEAGUE.
Unlock Weeble team:
Create a player with the name CODE WEEBLEMAN.
Unlock Secret teams:
Create a player with the name CODE EMOTIONS.
Unlock CPU pitches:
While batting, press R on controller 2.
Unlock Exploding batter:
Quickly press Right, Left, Down, Right, Left, Up, Right, Left, Down while batting.
Unlock Fireworks:
In exhibition mode, press Z at the stadium selection screen to enter "View
Stadium" mode. Then, press R + Z.
Unlock Flying Player:
When your opponent hits a pop-fly to the outfield don't catch it. Instead pick it
up and run it in by holding Z and C-up. Then press C-Right, C-Up, C-Left, C-Down,
C-Left, C-Up, C-Down, C-Right, C-Up, C-Left, C-Down. On the next hit don't pick
it up, instead repeatedly tap A or B.
Unlock Automatic home run:
Wait until you are controlling Ken Griffey Jr. at bat. Press Left, Left, Right,
Right, Right Left, Left. Successfully hit the ball for a home run.