Dark Summit

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

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

Alien unlocked:
Pause the game and press Triangle, Square, L1, Circle, R1, X, R1, X. If you entered the code correctly, you will hear a sound. 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. If you entered the code correctly, you will hear a sound. Press R2 to shoot a barrel with a projectile.

Slow-motion mode:
Pause the game and press Square, Circle, Triangle, L1. If you entered the code correctly, you will hear a sound. 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.