All Working ESPN Winter X Games: Snowboarding Cheats - Playstation 2

Bonus levels
Win a gold medal in all X Games competitions to unlock the Deep Freeze Mountain, Grind Or Die, Halfpipe Winter Style, and four more Slopestyle Events.

Night levels
Successfully complete all four minute events in X Games mode (SnowborderX, Superpipe, Big Air, and Slope Style), to unlock Big Air and Super Pipe at night.

Tricks

Back Flip: Press [Down].
BS Rodeo: Hold [L1] or [L2] + [Down/Left]. Press [Down/Right] if goofy.
Corqscrew: Hold [L1] or [L2] + [Down/Right]. Press [Down/Left] if goofy.
Front Flip: Press [Up].
Indy Grab: Press [Circle].
McTwist: Press [Down/Left].
Mute Grab: Press [R1] then press [Circle].
Method: Press [R1] then press [Triangle].
Rodeo: Press [Down/Right].
Tail Grab: Press [X] + [Square].

Keeping sponsors longer
Once you win a competition in the Rank B contests in snowboarder mode, a person will approach and say that they want to sponsor you. Accept, and quickly save the game. If you lose the sponsor, immediately quit, and reload from the last save. You will have the same sponsor you had before they dropped you.

Gaining more sponsors
Girst get a sponsor. As you win more contests, more sponsors will hook you up. If you decline an offer, the person with the offer will ask if you will repeat what you said. If you accept it, they will be happy -- if not, they will look at you and say "we thought it was a good offer".