Or, to put it another way:
Warner Brothers sued for unauthorized use of Nyan Cat and Keyboard Cat
by Timothy B. Lee
Warner Brothers is facing a federal lawsuit for using two feline-themed Internet memes in a video game without their creators’ permission. The authors of “Keyboard Cat” and “Nyan Cat” have sued the media giant arguing that the game Scribblenauts, published by WB Games, infringes their copyrights and trademarks. The game’s developer, 5th Cell, is also named in the lawsuit.