Hidden board park:
Go to name entry screen at career mode. Enter EVRSPRK as a name to
unlock a hidden course.
Bonus characters:
Complete the various challenges to unlock Tara, Nate, Replay, Max and more
bonus characters. Successfully complete all hard downhill gates to unlock
Le'Monjello, Burg, Tex, and Gray.
Bonus event:
successfully complete all events to unlock the Triple Crown Event.