3DS used as controller in Smash Bros. Wii U
This is an interesting little piece of information. It has been found, in the menu of the 3DS version of Super Smash Bros, that the Nintendo 3DS can be used as second, GamePad-like, controller during Super Smash Bros. Wii U. But there is a catch. Players will have to own both the Wii U and 3DS version of the game.
Also, the 3DS can be used to transfer custom fighters between the 3DS and Wii U. What do you think of the 3DS use in Super Smash Brothers?