Nintendo's latest Switch update is apparently a treasure trove of secrets. In addition to secretly slipping in support for USB headphones, the gaming titan has also bundled in the ability to support GameCube controllers. Yup, you can dig up your old console and use your old friend to play new games... and maybe even old ones, too, if the rumors about a GameCube virtual console ever becomes a reality. Unfortunately, the compatibility isn't that straightforward -- you'll also need to have the USB adapter Nintendo released for the Wii U sometime ago. It adds GameCube controller support to the Wii U, though it only works if you're playing Super Smash Bros.