Evil Twin

Enter the following button combinations in "Cheat Codes" option:

Unlimited lives: X, Square, Triangle, X, Circle
Super shots: Circle, Triangle, Triangle, Square, X
Continous shooting: Square, Triangle, X, Triangle, Circle
Bounces: Circle, Square, Circle, Triangle, X
Sights: Circle, Circle, X, Triangle, Square
Snipe: Square, Circle, X, Triangle, Circle