Bonus teams:
Highlight the "Pre-Season" option from the main menu. Then,
hold L and press A. Press Right to access the Nintendo Gamers,
Nintendo Plumbers, and Left Field Lefties teams.

Disco mode:
Pause game play and press A, C-UP, DOWN, UP, C-DOWN, R, R, B,
C-RIGHT, C-RIGHT, Z.

Big heads:
Pause game play and press RIGHT, RIGHT, LEFT, R, Z, START, A,
START, A, START, Z.

Alien heads:
Press C-UP, C-DOWN, C-LEFT, C-RIGHT, START, START, A, B, A, R, Z
at the main menu. Press the B to return to the main menu. Then,
enable the "Bonus teams" code and select the "Left Field" team.

Small players:
Press C-RIGHT, C-RIGHT, B, R, R, C-DOWN, UP, DOWN, C-UP, A, Z
at the main menu.

View replay:
Pause game play and enter the preferences menu. Set the
"Special cameras" option to "Replays". Resume game play and
press B + Z after scoring to view the replay of the basket.

Alternate replay angle:
Hold B during a replay.

Create Michael Jordan:
Select "Create-a-Player" and name the new player "Michael Jordan".
Enter 6' 6" as a height, 38 years old as an age, all attributes 99%,
and make him pro for 8 years. The newly created player should have
a Bulls uniform on when viewed.