Extra Teams:

Hold the L Button when selecting Pre-Season from the Main Menu. Cycle through the team selection screen. There will be new teams to choose from.

Disco Floor:

Pause the game and enter:

A, C-Up, Down, Up, C-Down, R, R, B, C-Right, C-Right, Z.

Big Head Mode:

Start a game in any mode. Press start to pause the game, then press the following buttons in this order: D-Pad Right, D-Pad Right, D-Pad Left, R, Z, Start, A, Start, A, Start, Z. Don't worry about what happens as you enter the code, just keep pressing the buttons until the entire sequence is complete.

Alien Heads for Left Field Team:

At the Main Menu, press C-Up, C-Down, C-Left, C-Right, Start, Start, A, B, A, R and Z. Press the B Button until you return to the Main Menu. Hold L and Press A to enter Pre-Season. Go to the Special Teams and select the Left Field team.

Small Players:

At the Main Manu, press C-Right, C-Right, B, R, R, C-Down, Up, Down, C-Up, A, Z.

Hang on the rim:

To hang on the rim, do a two hand dunk and hold the B button. If you hold it too long you will get a Technical foul.

Replay glitch:

After any cool play, sub in a different player. During the replay it will show the player you just subbed in instead of the guy who actually did it.

Easy Free throws:

If you are about to shoot free throws and you have a poor free throw shooter, just sub in a better shooter before he goes to the line.

Spin Dribble:

Tap R twice to spin dribble.