Paper Mario: Sticker Star (known in Japan as Paper Mario: Super Seal) is a 3D fantasy turn-based RPG developed by Intelligent Systems (along with Nintendo SPD Group No. 3 and Vanpool) and published by Nintendo for the Nintendo 3DS in North America (on November 11, 2012), Japan (on December 6, 2012), and Europe (on December 7, 2012).
The fourth main game in the Paper Mario series, Sticker Star returns the series to turn-based combat (after the real-time platforming of Super Paper Mario). Along with the series's unique papercraft aesthetic, the game introduces stickers as a core mechanic of both the story and the gameplay.
The game's story takes place in the Mushroom Kingdom, as an incident involving the Sticker Comet causes Bowser to break the Comet into six Royal Stickers and become more powerful. It's up to Mario (with the help of sticker fairy Kersti) to retrieve the Royal Stickers and defeat Bowser's forces. Also, Princess Peach is kidnapped again.