Maximum bolt:
  Left, Right, Up, Down, L1, O, Triangle, R2, Left, Down, Square, Square 

Maximum spread:
  L2, R1, O, L2, Down, Up, L1, Right, Left, X 

Maximum homing:
Press Right, Up, Square, L1, Left, Left, L1, Left, O, Left 

Maximum beam:
  Left, O, Triangle, Right, L1, Square, Left, R1, R1, Triangle 

Maximum area effect:
 Left, X, Triangle, Up, X, Down, Square, L2, Left, R2 

Select stage:
  R2, Triangle, Left, O, Square, L2, Left, Up, X, Down, L2, Square 

Invincibility:
  Right, X, R1, Triangle, Up, L2, X, Left, L1, O, X, R2 

Unlock all weapons:
  Up, Down, X, Square, R1, Triangle, Triangle, Left, O, L1, L1, Right

Disable power-ups:
Press Down, Up, X, Square, Down, Up, X, Square, L1, L2, Square, O 

Boss mode:
  R1, Triangle, Down, Down, X, L2, Left, Square, Right, Triangle, R2, L1 

Training missions:
  Square, Up, L2, Left, Triangle, X, R2, O, Right, R1, Square, O 

Agent data:
  Up, Down, O, R2, Left, L2, Right, X, R2, Square, Up, R1 

Alien data:
  Square, L1, O, L2, Down, Triangle, R1, Right, X, Left, R2, Triangle 

"Making Of" video:

  O, R2, L2, O, Triangle, Down, Square, X, Right, L1, X, Up