GameCube Controller Adapter is Specific to Super Smash Bros. for Wii U, Not Compatible With Other Wii U Titles
Smash Bros. fans on Wii U have a lot to look forward to not only with the upcoming new game, but also the promise that the game will be compatible with GameCube controllers thanks to the new controller/adapter included with the game’s special edition – unfortunately, the new controller and adapter will only go so far on the Wii U in terms of its accessibility.
After reports detailed that the controller would work with other Wii U titles, Nintendo clarified in the product description for the GameCube controller adapter on its UK page that the controller adapter will only work with Super Smash Bros. for Wii U. The description clarifies that the adapter will not work with other Wii U titles, or with the original Wii:
Please note the GameCube Controller Adapter for Wii U is compatible with Wii U and Super Smash Bros. for Wii U specifically – it is not compatible with any other Wii U software. The adapter is also not compatible with Wii and we apologise for any confusion prompted by our earlier listing.
Super Smash Bros. for Wii U releases on November 21st, 2014.