![](http://images.eurogamer.net/2013/articles/1/5/5/8/5/7/3/136152742928.jpg/EG11/resize/405x-1)
The 3DS version of the game does not have online play built in, unlike its Wii U brother. But by plugging in the Wii U adapter you can trick the console into connecting your 3DS version to Wii U servers for the game.
It's a bodge that makes use of the fact that 3DS players can join in a local Wii U game.
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