Universal City Studios, Inc. v. Nintendo Co., Ltd. was a case heard by the United States District Court for the Southern District of New York by Judge Robert W. Sweet. In their complaint, Universal Studios alleged that Nintendo's video game "Donkey Kong" was a trademark infringement of "King Kong", the plot and characters of which Universal claimed as their own. Nintendo argued that Universal had themselves proven that "King Kong"s plot and characters were in the public domain in "Universal City Studios, Inc. v. RKO General, Inc."