Bloomberg reports today Nintendo is suing Nyko Technologies over a copyright infringement stemming from Nyko’s wireless Kama Nunchuk.

Nintendo says the Kama Nunchuk copies patented Wii remote designs and infringes the “nunchuk” name and packaging. Nintendo filed a federal court complaint Wednesday claiming the Nyko controller “wholly appropriates the novel shape, design, overall appearance and even the color and materials used in the Nintendo Nunchuk controller.”

During a Bloomberg phone interview Thursday, Nyko spokesman C.C. Swiney said, “We have not knowingly violated anyone’s intellectual property and we’re still examining this.”

For interested law school students and nosy gamers, the case is Nintendo of America Inc. v. Nyko Technologies Inc., 08cv907, U.S. District Court, Western District of Washington (Seattle).