Enter these codes at the Name Entry Screen (Please note that these codes only work on version 1.21):
When you're on the play selection screen, you can hide the cursor so others can't see the play you choose. To do this, highlight the upper-left play (where the cursor is before you move it), then move Up on the joystick twice to hide the cursor.
Hold RIGHT and all three buttons on player 4's controller before the Match-up Screen appears.
At the Tonight's Match-Up screen enter the following code... Note: The first nuber represents how many times you hit turbo, the second Jump, and the third Pass then the direction to hold.