Kobe Bryant In NBA Courtside

Tiny players
Hit C-Right, C-Right, B, R, R, C-Down, Up, Down, C-Up, A, Z
at the main menu.

Giant heads
Pause the game play and hit Right, Right, Left, R, Z, Start,
A, Start, A, Start, Z.

Extra Nintendo teams
Go to main menu and highlight the "Pre-Season" seelction.
Then, hold L and hit A.

Alien heads
Hit C-Up, C-Down, C-Left, C-Right, Start, Start, A, B, A, R, Z
at the main menu. Hit B to jump back to the main menu.
After, hold L and hit A to enable the Bonus Nintendo teams.

Enable disco mode
Pause the game play and hit A, C-Up, Down, Up, C-Down, R, R, B,
C-Right, C-Right, Z.

Replay
Pause the game play and go to the preferences.
Set the "Special cameras" option to "Replays".
Resume the game and hiz Z + B after scoring.