Type the name Scott ingame and it will give you the power to speed up the ball at all times.

Type the name Steve ingame and it will put Warrens hat on the ball but not give it the magical properties of the hat.

Type the name Kathy ingame and it will give you Claudes Flippers for the duration of the game.

These are names from the high score tables for each stage. play around with typing different names on different levels to see what more can be unlocked.