Rhythm Thief & the Emperor’s Treasure, known in Japan as Rhythm Thief R: Emperor Napoleon's Legacy (リズム怪盗R 皇帝ナポレオンの遺産), is a rhythm, puzzle and adventure video game co-developed by Sega and Xeen and published by Sega for the Nintendo 3DS. It was released on January 19, 2012 in Japan, April 5, 2012 in Europe, April 12, 2012 in Australia, and July 10, 2012 in North America. An abridged port for iOS devices, titled Rhythm Thief & the Paris Caper, was released on October 30, 2013 in Japan, and on January 9, 2014 in North America and Europe.