This game is also available on SNES.
Finally, press Start to load the game and hold L1 + R1 + Up + Right + Triangle + X + Square + Circle until the game is loaded. If you did this right you will enter a secret cheat menu. Here's how to use it...
L1 and L2 control player height in inches. (Note: Any height greater than 7'10" cannot slam the ball.)
Up and Down control chameleon mode.
Start and Select on Controller One turn outdoor mode on and off.
To return to the game, hold Triangle + X on Controller One.
Note: To change all the players on the cheat list, you must use a PlayStation multitap and have all controllers plugged in.