Unlock All Levels
At the main screen, press: Up, Up, Up, Down, Down, Down, Up, Down, Up, Down, Up, Down, L1, R1.
Also reported as: Up, Up, Up, Down, Down, Down, Up, Down, Down, Down, L1, R1.
Get Big heads
At the main screen, press: Up, Up, Up, Down, Down, Down, Left, Right, Right, Right, L1, R1.
Get Tons Of Points In One Move
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.
Get the Hoverboard
On the first set of level get all the objectives. Once you have done this you should be able to go to the second set of levels. Get all the objectives at the Ruins and the Hoverboard should show up in the boards section.