Camera Lock:
This code will lock the camera behind your ship. Pause & press Circle, Square, Triangle, Triangle, Circle, Square, Triangle.

Full Shields:
Pause the game and press Select, Circle, Right, Up, Up, L1, L1, X.

Move Enemies & Obstacles:
This code will add variety to the game by moving the enemies & obstacles in each tube. Pause & press R1, R1, Up, Circle, Square, Triangle, L2, X.

Level Passwords:
These are for Normal difficulty -
1    Square, X, X, X, Square, Square, Triangle, X, Square.
2    Triangle, Square, X, X, Square, Square, Triangle, X, X.
3    Circle, Square, X, X, X, Square, Triangle, X, X.
4    Triangle, X, Square, X, X, X, Circle, X, Square.
5    Circle, X, Square, X, X, Square, Triangle, X, Circle.
6    Triangle, Square, Square, X, X, X, Square, X, Triangle.
7    Triangle, X, X, Square, Square, Triangle, Triangle, X, X.
8    Square, X, X, Square, Square, Triangle, X, Triangle, Square.

Pseudo First-Person:
For an approximation of a cockpit view, pause & press Triangle, Circle, Square, Square, Triangle, Triangle, Select, Start.

Random Curving Tubes:
For a change of pace, pause & press Circle, Select, Left, Square, Square, Down, Up, X.

Ultimate Weapon:
To start the game with the ultimate weapon (A lightning bolt special with unlimited use), enter the password X, Square, Triangle, Circle, Square, Circle, X, Triangle.

Warp Speed:
Pause the game and press Circle, Square, Circle, Square, Triangle, Triangle, Triangle, X.