Demo Stage:
     Press Up, Down, Right, Left, X, X and X to unlock the demo stage.

Modify Score:
     For  this  cheat  you  have  to  make  sure  to  plug  a pad into
controller  port  2. Press Right, Right, Left and Left on controller 2
to  display  your  score. Hold L1+R1, and press Right, Right, Left and
Left on controller 2 to add points to your score.

Regain Health:
     Pause  the  game  and press Up, Down, Right, Left, Square, Square
and Square to regain your health.

Unlock All Characters:
     Press  L1, R2, L2, R1, Right, Left, L3 and R3 at the title screen
to unlock all characters.

Unlock All Missions:
     Press  L1,  R1,  L2,  R2, Right, Square, L3 and R3 at the mission
select screen to unlock all missions.

Unlock All Items:
     Hold  L1+R1,  and press Up, Square, Square, Left, Square, Square,
Down,  Square, Square, Right, Square and Square at the items screen to
unlock all items.

Increase Items:
     Hold  L2+R2, and press Square, Square, Square, Up, Left, Down and
Right at the items screen to increase the number of items you have.

Unlock Bonus Stage:
     Press  L1,  Up,  R1,  Down,  L2,  Right, R2 and Left at the title
screen to unlock the bonus stage.

Unlock All Layouts:
     Press  R3,  L3, R2, L2, R1 and L1 at the mission select screen to
unlock all layouts.