MLB
Faster players
Pause the game and press Left(3), Up, Right(3), Down.
Faster pitch speed
Pause the game and press Up(2), Left, Right, Left, Right, Up(2).
Slower players
Pause the game and press Right(3), Up, Left(3), Down.
Big heads
Pause the game and press Left, Right, Up(2), Left, Right, Up(2).
Small heads
Pause the game and press Left, Right, Down(2), Left, Right, Down(2).
Big ball
Pause the game and press Up, Right, Down, Left, Right, Down, Left, Up.
Game developer starters
Pause the game and press Left, Down, Up, Right, Left, Down, Up, Right.
Disable sound effects
Pause the game and press Up(2), Down(2), Left, Right, Left, Right.
Good hits
If you guess a four seam fastball every time you will increase your chances of hitting the ball, and hit the ball further.
Easy homeruns
While playing the game in Season mode, press Start and go to the options. Go to “User Game Tuning” and increase your contact and power until it is a full bar. You will now be able to hit a homerun with almost every at bat.
Quick win
Start a game, score a run, then press Start. Go to “Fast Forward” and select “End Of Game” and you will win.
Inside the park homerun
If you hit the ball and it goes to the entrance of a dug out, the opposing team will try to pick it up but will not be able to get to it, making it so you can get an inside the park homerun.
The image featured at the top of this post is ©Square Enix.