Alright, we all know that Mario Kart 8 currently offers a free download code for one of 4 games in the US when you get it and register it on Club Nintendo before July 31. Do I actually need a Wii-U to take advantage of this right now? You see, I plan to get a Wii-U sometime this year, I just have no idea when yet. This is a deal I feel I can't pass up. Must I have a Wii-U registered on my Club Nintendo account to register Mario Kart 8 and get my download code of choice for later? In addition, do these download codes have expiration dates themselves? I know the promotion ends July 31, but I haven't seen anything about the code itself expiring. Thanks in advance to anyone who can shed some light on things.