Loads of cheats!
These are all the cheats I know for this game, all of these work, I know because I have tried them.
These cheats you can unlock the characters if you play through conquer the mountain but there's a few extras too I think:
milkemdaisy-Cudmore the cow
worm-eddie(from ssx tricky)
bronco-luther(from SSX tricky)
back2future-Marty(from ssx and ssx tricky)
callhimgeorge-North West Legend
These will unlock all extras:
gotitgotitneedit-All trading cards
graphicdelight-All boards(plus a few extra ones!)
naturalconcept-All artwork(if you ever see it spelt koncept it is incorrect because i have tried it twice, it doesn't work!!)
shoppingspree-All peak 1 clothes
Another cheat is midstationexpress but I am not sure what it does but it does work.
Hope this helps and have fun!!
Added by: the_snot_monster.. Apr 18th 2004, ID#8279