So I just ordered a Wii U and it should arrive this coming weekend. I'm interested in picking up MH3U after seeing Patrick's QL back when, but I'm not sure how multiplayer codes work on the Wii U.

Basically, my question is that if I buy a used copy from Gamestop, will I be able to play multiplayer? Or are the multiplayer codes included "one and done"? (I played a little of Tri on the wii, and remember it coming with a code that you had to manually enter to authenticate your wii -- I'm assuming it's the same case here).

Thanks!