Various cheats
     Enter the following codes on the cheats menu.

Unlock All Characters             entourage
Unlock All Stages                 ambassador
Unlock All Create-a-Skater Items  trendytrickster
Unlock Lion King Video            savannah
Unlock Tarzan Video               nugget
Unlock Toy Story Video            marin
Special Meter Always Full         supercharger

Hints

Unlock Better Stats:
     Collect hidden gems in each level to improve your stats

Unlock Special Moves:
     Collect 25 items in each level