All Boarders:

Pause the game and press Triangle, Square, L1, Circle, R1, X, R1, Triangle. If you entered the code correctly, you will hear a sound.

Challenges Beaten:

Pause the game and press Triangle, Square, L1, Circle, R1, X, R1, Square. You will hear a sound to confirm. All challenges except for 43 (Race The Chief), 48 (Bomb #5), 49 (Alien Half Pipe), and 50 (Storm HQ) will be completed. You will also have all Bomb Pieces, with the exception of #5.

Extra Points:

Pause the game and press Triangle, Square, L1, Circle, R1, X, R1, X. You should hear a sound to confirm. You will now have 9,100,000 lift points which unlocks all lifts except for the Moon Gate. You will also have 9,100,000 equipment points, which unlocks all boards, accessories, and special tricks.

Unlock Alien:

Pause the game and press Triangle, Square, L1, Circle, R1, X, R1, X. You will hear a sound to confirm. Challenges 43 (Race The Chief), 48 (Bomb #5), 49 (Alien Half Pipe), and 50 (Storm HQ) will be completed. You will also have Bomb Piece #5.

Shoot Projectile:

Pause the game and press Square, Circle, Triangle, R1. You will hear a sound to confirm. Press R2 to shoot a barrel with a projectile.

Slow-motion Mode:

Pause the game and press Square, Circle, Triangle, L1. You will hear a sound to confirm. Press L1 + R1 when in the air on during a railslide to activate slow motion mode. This mode automatically ends when you reach the ground.