I found out that you can purchase him as DLC and you get him for free if you register both copies. So those of you without a Wii U can hold hope.
I don't understand 'register.' How you would register both copies (like, do you type in the code on the back of the game card or...?) Or where do you register both copies, where do you type the code in for example? Also can I get Mewtwo on both versions of the game, or does is it only downloadable on the Wii U?
If all I need to do to register both copies is type in the code on the back of the game card, then I may not need to have a Wii U at all. It said that Mewtwo is available to those who own both versions of the game. That doesn't imply that you need to own both systems. Or do we need to actually play both versions to access the event? (Wow I'm asking a lot questions. I must be in a questioning mood today)