Edit:
From GameInformer, via NinEverything:
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From there: http://www.nintendo.co.jp/wiiu/software/bwpj/index.html
By the way, game is 7.8GB, and you can only make 1 save data (though each user get one, I believe).
From GameInformer, via NinEverything:
“The Adventure Mode features a ‘Network Link’ feature. This allows you to add a ‘Link’ to your maps whose level is based on other users’ play data. If you come to this Link’s aid and fight alongside him, you’ll get access to special bonuses.”
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From there: http://www.nintendo.co.jp/wiiu/software/bwpj/index.html
Purchase of additional content
Automatic posting of play status to Miiverse
Play special battle in adventure mode
By the way, game is 7.8GB, and you can only make 1 save data (though each user get one, I believe).