New Super Mario Bros. U

New Super Mario Bros. U is a 2012 platform game developed and published by Nintendo as a launch title for the Wii U. The game is a sequel to New Super Mario Bros. Wii and the fourth and final entry in the New Super Mario Bros. series, following New Super Mario Bros. 2. In the game, the player plays as Mario on his way to rescue Princess Peach and her castle from Bowser. It is also the first entry in the Super Mario series to feature high-definition graphics; the game retains the cooperative multiplayer gameplay from its prior entry.

Development of the game started after the release of New Super Mario Bros. Wii and was revealed at E3 2011. Takashi Tezuka explained that he created the game to take advantage of the Wii U, introducing the Boost mode and Miiverse integration.

The game received generally positive reviews from critics who praised its gameplay, and graphics, but it was criticized for its flat, uninteresting atmosphere. The game became the third best-selling Wii U game, and received an expansion pack named New Super Luigi U as part of the "Year of Luigi" campaign, and a Nintendo Switch port named New Super Mario Bros. U Deluxe was released on January 11, 2019 worldwide, followed by a release for China on December 10, 2019. As of March 2025, the game has sold over 24 million copies.