Rhythm Thief & the Emperor's Treasure

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 music, puzzle and adventure video game developed 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. A port for iOS was scheduled to be released in Winter 2012.

The game's main action takes place in the Story Mode, where players follow Raphael as he investigates the mystery surrounding his father's disappearance and the resurrection of Napoleon. Throughout the story, players will navigate various areas across Paris, conversing with NPCs and solving puzzles to progress through the story. By touching various areas on the touch screen, players can find medals, people to talk to, and hidden music scores. Certain areas will also record sounds, which can be used to solve puzzles or construct the Master Instrument. Careful exploration by the player can reveal hidden rhythm games and story branches. Medals earned from rhythm games and found in areas can be spent in a shop to unlock additional minigames and movie clips.

During the story, players will encounter a series of rhythm games which are controlled by using the Nintendo 3DS's touch screen, face buttons or gyroscopic controls. Types of levels featured include swiping the stylus to match up with other dancers, tapping the touch screen to hide behind statues, pressing buttons to fight off groups of enemies and tilting the console to dodge attacks. The game also features parodies of past Sega rhythm games such as Space Channel 5 and Samba de Amigo. Additional medals can be earned depending on the rank players receive. The game also features wireless multiplayer for up to two players to compete for the highest score and Streetpass functionality where players can challenge others to beat a high score.