Nintendo had never taken a third party to court over controllers for their system, until now. Nyko didn’t change enough in Nintendo’s eyes with their wireless Kama Nunchuk, as Nintendo is claiming the product:

Wholly appropriates the novel shape, design, overall appearance and even the color and materials used in the Nintendo Nunchuk controller.

Make this a warning all those third party accessory designers out there, stay away from white, as well as plastic, if you can. Those are Nintendo’s.

Bloomberg