Unlock 40's teams
Pause game and press R1, R1, R1, R2, L1, L2, Circle, Square, Triangle, R1, R1
Unlock 70's, 80's and 90's teams
Go to the team select screen and press and hold L1 + L2 + R1 + r2 and press Up, Triangle, right, Circle
Get Fast Pitches
After making a player put in STRONG ARM for the name
Get Grand Slam Batter
After making a player put in SLUGGER for the name
Sounds for the Homerun
When running bases for a homerun press Square, Circle or triangle to hear various sounds
Unlimited Creation Points
Make a player and put in Ichiro for a name
Make a diving catch in season mode.
Score five runs by the same player in one game in season mode.
Make three diving catches in one game in season mode.
Hit two consecutive homeruns in season mode.
Make two diving catches in one game in season mode.
Throw six consecutive strike outs in season mode.
Throw nine consecutive strike outs in season mode.
Big League Challenge power boost
Hit ten consecutive homeruns in Big League Challenge mode to get a boost in power, which is noted with a flaming baseball. Hit seven more consecutive homeruns to receive another boost in power, which is noted by a pulsating bat.
Throw twelve consecutive strike outs in season mode.
Unlock cheats easily
Begin a game in two player mode while using both controllers. Keep hitting homeruns, triples, and more off fastballs by pressing X(2) on controller two when pitching. Note: Make sure that you include ground ruled doubles and inside the park homeruns. Additionally, pitch a shutout or perfect game against player two in a 9-inning game. You can also unlock the codes in single game or exhibition modes.
While running around the bases after hitting a homerun, press Triangle to hear a soft horn, Square to hear a loud horn, or Circle to hear a whistle.
The game awards points for doing certain things in season mode. These points can be used in the season store to buy new stadiums, legendary players and better player attributes. The point system is as follows:
Grand slam 400
Stolen base 200
Double play 300
Triple play 500
Strike out opponent 200