Patent 2014. Meant for fitness and exercise, likely a peripheral you don't have to buy, or might be cancelled altogether with Nintendo's statement about holding off on QoL.
I mean, come on guys. How many patent threads we gotta go through with the same reactions of "omg, stop Nintendo!" and actually believing a fake 3D printed controller is real because it looks exactly like a patent you saw. And the 3D printed controller was too close to the original patent about a function, not a design. Something I and many others kept saying over and over.
A patent is an idea. Many of these ideas will not get used but prevents others from taking your ideas if you plan to use them and incorporate some of the ideas in future products.
It's still neat though.