This was just posted on the Nintendo of America Twitter page regarding PokePark Wii: Pikachu's Adventure, one of the first Wii Pokemon games that is not based on stadium battle:

"Playing PokéPark Wii: Pikachu’s Adventure? Enter 67446162 to unlock Pikachu’s Snowboard!"

Interestingly, upon further investigation, I found that this is not the only code available to give Pikachu's Snowboard. On Gamespot I found a different list of codes and the one for the snowboard is different.

And here is yet another code from www.pokemonsecure.com for the snowboard.

So which is it? Do they all work? Try them out and let us know down below!