Slow motion mode:-  
To get Slow Motion Mode you must Hold the Back + Start button and press Y, X, B, L Now you can press L + R in the air for slow motion.

Barrel:-  
To shoot barrel you must hold the Back + Start button and press Y, X, B, R.

Unlock alien:-
To get Alien unlocked you must hold the Back + Start button and press Y, L, X, B, R, A, R, X. 

All boarders:-
To get all boarders unlocked you must hold the Back + Start button and press Y, L, X, B, R, A, R, B

Challenges finished:-
To get challenges finished you must hold the Back + Start button and press Y, L, X, B, R, A, R, Y.

More points:-  
To get more points you must hold the Back + Start button and press Y, L, X, B, R, A, R, A.

Faster recovery:
Press A after falling to recover quicker. 

Shoot projectile:
Hold Back + Start and press Y, X, B, R at the main menu. A sound will confirm correct code entry. Press L + R to shoot a barrel with a projectile.

Costume 2:
Get at least 50,000 points.

Costume 3:
Get at least 100,000 points.

Costume 4:
Get at least 150,000 points.

Costume 5:
Get at least 200,000 points.

Costume 6:
Get at least 250,000 points.

Costume 7:
Get at least 375,000 points.

Costume 8:
Get at least 500,000 points.

Costume 9:
Get at least 625,000 points.

Costume 10:
Get at least 750,000 points.

Costume 11:
Get at least 875,000 points.

Costume 12:
Get at least 1,000,000 points.

Costume 13:
Get at least 1,250,000 points.

Costume 14:
Get at least 1,500,000 points.

Costume 15:
Get at least 1,750,000 points.

Costume 16:
Get at least 2,000,000 points.

Dynamic 3000 snowboard:
Get at least 1,000,000 points.

Prototype MG snowboard:
Get at least 2,000,000 points.

Slick 250 snowboard:
Get at least 250,000 points.

Boost of air:
When on an area that has a bomb, jump immediately before it then land on it. This requires some practice. When timed correctly, you will be able to get a quick special move in for an extra 6,000 or so points. This is useful for beginners that do not have all of their equipment yet.