ESPN X Games Skateboarding Cheats

Ok, first max out your super move gauge. Than get on a half pipe and
speed up. Try to go as fast as you can go. When you start to go higher
in the air hold down R2 and than tap Triangle 2X fast and he will do a
move. He will do his super move and spin at the same time increasing his
score to about 15-20 thousand points. Make sure you land it or you wont
get the points. This works with any skater and any board. My best score
was 35000 points.

Unlock hard mode, then play a level until you get all of the licenses for that level. For every level you do this, you will unlock an extra board.
Game Shark Codes
Master Code (Must Be On) EC8A17A0 14439B6C
Full Special 4D529744 1456E6B9
Unlock All Boards 7C1EEE38 144EE7A63D988229 1456E7A54C1EEE58 1456E6A6
High Score 0D5295EC 1456E7A51D5295EC 17E9C70C

At the title screen, press Up, Up, Up, Down, Down, Down, Up, Down, Up, Down, Up, Down, L1, R1.

In Vert Xgames or Xrage, press Right if you are on the right side or Left if you are on the left to go sky high.

Go to the area with zombies on a high platform. Jump off of the platform towards the waterfall to get the board.