Successfully complete all levels to unlock the credits stage, a video of your character, and Summer, the first hidden character.
Easy Manual
When you do a manual, to keep balance easily rapidly press Up, Down, Up, Down.
Fmv Sequences
Successfully complete the game to unlock the FMV sequence for that character.
Master Cheat (Unlock Everything)
Go to the main menu and press quickly Up, Down, Up, Down, Up, Down, Up, Down, Up, Down, Left, Right, Left, Right, Left, Right, Left, Right, Left, Right. A message will indicate correct code entry.
Play As Jordan
Make a perfect run during all the Star Search challenges (collect every possible star) to unlock Jordan, the second hidden character.
Unlock Levels
Go to the main menu and press Square, Square, Square, Square, Circle, Circle, Circle, Circle, Triangle, Triangle, Triangle, Triangle, Square, Circle, Triangle.