An abridged port for iOS devices, titled Rhythm Thief & the Paris Caper,[b] was released in Japan in October 2013 and worldwide in January 2014.

To further find clues about his father, and Napoleon, Phantom R visits the Paris Opera and steals the 'Queen's Pendant' from Duchess Elisabeth.

Phantom R narrowly dodges arrest and takes Marie back to his flat where he reveals the true reason behind his acts of theft.

Phantom R climbs the Eiffel Tower and boards the hanging gardens along with the Paris police force, who arrest Jean-François.

However, with encouragement from Marie and her violin, along with the willpower and the rhythm of the citizens of Paris, he destroys the Gardens' source of power, causing it to crumble and fall apart.

They share one final dance during the celebration before parting ways, with Raphael continuing the search for his father, and Marie pursuing the path of a professional violinist.

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.

Medals earned from rhythm games and found in areas can be spent in a shop to unlock additional minigames and movie clips.

Types of levels featured include swiping the stylus to match up with other dancers, tapping the touchscreen to hide behind statues, pressing buttons to fight off groups of enemies, and tilting the console to dodge attacks.

In the Western version, due to licensing issues, the ending theme is "Je te dis au revoir" (I say goodbye) by Kahimi Karie.

A spin-off of the game, titled Rhythm Kaitou R Premium Live, was released in Japan on October 30, 2013, for the iPhone and iPad.

[9][10] An English version of Premium Live was planned for release in early 2014 under the title Rhythm Thief & the Paris Caper.

Whilst initially planned as a free app with additional paid content, the game was released on January 9, 2014, as a priced title.

"[29] However, Digital Spy gave it three stars out of five, saying that it "features some excellent rhythm action gameplay, a well-executed narrative and an interesting array of colourful characters.

If they ever made Professor Layton: The Musical, Rhythm Thief & The Emperor's Treasure is what you'd be left with, a charming game perfectly suited to the portable."

"[15] David Jenkins of Metro gave The Emperor's Treasure eight out of ten and stated, "Professor Layton may offer a more cerebral challenge but Rhythm Thief has more than enough charm and imagination to waltz its way into your affections.

"[32] However, Roger Hargreaves of the same website gave The Paris Caper five out of ten, saying, "The original 3DS game is sacrificed on the altar of microtransactions and grubby monetisation, almost erasing any sense of fun in the process.