Today Nintendo detailed the Wii U adapter for GameCube controllers and the new Super Smash Bros.-themed GameCube controller. In May Nintendo revealed the controller and adapter, stating that they are designed to commemorate the launch of Super Smash Bros. Wii U.
The adapter allows up to four wired or wireless GameCube controllers to be used on the Wii U. Nintendo said today that it'll cost $19.99.
Nintendo is also making a new GameCube controller "to honor devoted loyalty to a classic way to play," according to its press release. The controller will have Super Smash Bros. markings on it, and it will be sold for $29.99.