Confirmed: One Wii U can use two GameCube adapters pic.twitter.com/XD5sCeq2rz
— Jared Knabenbauer (@ProJared) October 24, 2014
A single Wii U console can connect to two Nintendo GameCube controller adapters simultaneously. This feature is supported by Super Smash Bros. for Wii U’s recently-revealed 8-player Smash mode, which lets eight players fight at the same time in local multiplayer matches. The adapter will launch alongside the Wii U version of the fighting title on November 21st. Nintendo is also planning to release a bundle that includes the game, one GameCube controller and an adapter.