play as Gray
you must get a 37.5 or higher in Halfpipe.

Tricks
With practice you can perform over a dozen tricks in this game. Here's how to do a few of them:

Shifty - L1
Lien Air - down + R1
Indy Grab - up + R2
Frontside 180 - Spin left
Mute grab - up + R1
Stalefish - down + R2
Method - down + L2
Backspin 180 - Spin right
Shuffle - L1, L2
Fakie to Shifty - L1(before the jump), L1
Flip - up + Flip
Backflip - down + Flip
Misty 180 - Hold X, Press down-left or down-right, release X
Nose Grab - up, up + R1
Frontside 180 Shifty - Spin left, L1
BORDERS PARK CHEAT
in border park when you get to the barels that you jump on jump on them and when there is no more barels you turn and face the barels, lean fowared and start to jump. This should bring you back to the barels keep jumping on them and you will will go threw the hole COOL color sikel.

Reversed courses:
Complete all nine rounds in "Snowboarding Combined" mode and achieve any ranking. Hold R1 and select "Freestyle" or Snowboarding Combined" modes to play reversed versions of the courses.

Course select
Quickly highlight the following selections in order at the mode selection screen: Board park, Option, Freestyle, One make, Snowboarding Combined, Half pipe, Freestyle and press Circle. Then, hold L1+ L2 + R1+ R2 and press Circle at the one player and two player selection screen.

Hard mode
Complete all nine rounds in "Snowboarding Combined" reverse mode and achieve any ranking. Hold L1 and select "Freestyle" or Snowboarding Combined" modes to play hard versions of thecourses.

Alternate clothing
Highlight the Snowboarding Combined option on the main menu and press Down, R1, Up, R1, Down, R2, Up, R2, Up(2), R1, Down(2), R2. Cindy will have a leather outfit and Irin will have a school uniform in any mode except Snowboarding Combined.

Play as Alien and Snowman
Complete all 100 moves in Master mode; set all records in Freestyle mode. Alternately, achieve a score of at least 40.0 in the Half pipe course.

Play as The Boss
Complete Mirror mode in first place.

Bonus boards
Enter Freestyle mode with all the tracks. Set the top record for all the tracks.

Mirror mode
Complete Snowboarding Combined mode and enter the options screen. Press Select on controller two, then press R1 + Square at the mode selection screen. E mode.