In Time Trial, enter YES as an access code. Then enter any of the following "Codes":

Code	Effect
LOTSOFFEAR	All Trails
ABDUCTION	Alien Trail
TOONITUP	Cartoon Trail
JACKEDIN	Virtual Reality Trail
MONKEYBIKE	Trick Trail
EDOMRORRIM	Mirror Mode
LOTSOFGEAR	All Upgrades
GOOBERS	All Riders
TIREFRAME	Wire Frame Mode
BIGFLOATER	Low Gravity