All Weapons
     At  the  Press  Start  screen,  press  Up,  Down,  X, Square, R1,
Triangle,  Triangle,  Left,  Circle, L1, L1, Right. If done correctly,
the screen will flash.

Level Select
     At  the  Press  Start  screen,  press R2, Triangle, Left, Circle,
Square, L2, Left, Up, X, Down, L2, Square.

Invincibility
     At  the Press Start screen, press Right, X, R1, Triangle, Up, L2,
X, Left, L1, Circle, X, R2.

Full Bolt
     At  the  Press  Start  screen,  press  Left, Right, Up, Down, L1,
Circle, Triangle, R2, Left, Down, Square, Square.

Full Spread
     At  the  Press  Start screen, press L2, R1, Circle, L2, Down, Up,
L1, Right, Left, X.

Full Homing
     At  the  Press  Start  screen, press Right, Up, Square, L1, Left,
Left, L1, Left, Circle, Left.

Full Beam
     At  the  Press Start screen, press Left, Circle, Triangle, Right,
L1, Square, Left, R1, R1, Triangle.

Full Area Effect
     At  the Press Start screen, press Left, X, Triangle, Up, X, Down,
Square, L2, Left, R2.

No Power-Ups
     At  the  Press Start screen, press Down, Up, X, Square, Down, Up,
X, Square, L1, L2, Square, Circle.

Boss Mode
     At the Press Start screen, press R1, Triangle, Down, Down, X, L2,
Left, Square, Right, Triangle, R2, L1.

Training Missions
     At  the Press Start screen, press Square, Up, L2, Left, Triangle,
X, R2, Circle, Right, R1, Square, Circle.

Agent Data
     At  the Press Start screen, press Up, Down, Circle, R2, Left, L2,
Right, X, R2, Square, Up, R1.

Alien Data
     At  the  Press  Start screen, press Square, L1, Circle, L2, Down,
Triangle, R1, Right, X, Left, R2, Triangle.

Making Of Feature
     At  the  Press  Start  screen,  press  Circle,  R2,  L2,  Circle,
Triangle, Down, Square, X, Right, L1, X, Up.