Cheat Codes:
IMTHEBEST - New character - Tank Evans
SLOWANDSTEADY - New character - Geek
THELEGEND - New character - Zeke Topanga
KOBAYASHI - New character - Tatsuhi Kobayashi
SURPRISEGUEST - New character - Elliot
TINYBUTSTRONG - New character - Arnold
FREEVISIT - Gives access to every championship location
GOINGDOWN - Unlocks all Leaf Sliding locations
DONTFALL - Enables Bonus Mission 'Legendary Wave' in 'Pen Gu North'
MYPRECIOUS - Unlocks all boards
NICEPLACE - Unlocks Art Gallery
WATCHAMOVIE - Unlocks Video Gallery & Spen Gallery
TOPFASHION - Unlocks customizations for all characters
we also found the following 5 cheatcodes but dont know
what they are supposed to do. anyway here they are.
TINYSHOCKWAVE - ?
MONSOON - ?
ASTRAL - ?
MULTIPASS - ?
THEARTIST - ?
from PWZ