Enter these codes on the Goodies Screen:

Infinite power-ups - CIRCLE, CIRCLE, CIRCLE, CIRCLE, SQUARE, SQUARE, SQUARE, SQUARE

Perfect shooting - SQUARE, SQUARE, CIRCLE, SQUARE, SQUARE, CIRCLE, SQUARE, CIRCLE.

Big heads - SQUARE, SQUARE, CIRCLE, SQUARE, SQUARE, SQUARE, CIRCLE, SQUARE

Speedy kids - SQUARE, CIRCLE, SQUARE, SQUARE, CIRCLE, SQUARE, SQUARE, CIRCLE

Chubby kids - CIRCLE, SQUARE, SQUARE, SQUARE, CIRCLE, SQUARE, SQUARE, SQUARE

Micro kids - SQUARE, CIRCLE, SQUARE, SQUARE, CIRCLE, CIRCLE, SQUARE, SQUARE

Wire frame - CIRCLE, SQUARE, CIRCLE, SQUARE, CIRCLE, CIRCLE

Beach ball - SQUARE, SQUARE, SQUARE, SQUARE, CIRCLE, CIRCLE, CIRCLE, CIRCLE

Slow ball - SQUARE, SQUARE, CIRCLE, CIRCLE, SQUARE, SQUARE, CIRCLE, CIRCLE.

Weak gravity - SQUARE, CIRCLE, SQUARE, CIRCLE, SQUARE, CIRCLE, SQUARE, CIRCLE