TL;DR Question: How do you play Nintendo GameCube games on a Wii console? Answer: Connect the controller and memory card, insert the game, select the correct Disk Channel.

To use a GameCube controller on Switch, you'll need a special adapter that Nintendo initially made to connect GameCube controllers to the Wii U.

You can now use Nintendo's official dongle to play games on PC using the GameCube controller.

With GC controller support on the Wii U, it looks like the first step towards getting downloadable GameCube games on Virtual Console has already been achieved.

As of this writing, only Super Smash Bros. for Wii U will acknowledge when a GameCube controller is plugged in, so there is no getting around using another controller to get your Smash on.

A new Wii U adapter will let you use the vintage controller to play the upcoming Super Smash Bros.