New Super Mario Bros. U

New Super Mario Bros. U is a side-scrolling 2.5D platform game and the fourth installment in the New Super Mario Bros. series. As the sequel to New Super Mario Bros. Wii, the game is a follow-up game of New Super Mario Bros. 2. It uses new, more detailed background styles and models and introduces the Flying Squirrel power-up, acquired by Mario and his friends from an item called the Super Acorn, as well as utilizing the Wii U GamePad in Boost Mode. In addition to the core campaign, there are also challenge modes. The campaign is a single overworld map of the Mushroom Kingdom with courses that end at a flagpole, and Mario, Luigi and two Toads can all play at the same time. In Boost Mode, a second player uses the GamePad touch screen to place blocks and stun enemies for the players on the TV. Yoshi appears in some courses, and baby Yoshis give players special abilities such as lighting up dark areas. The challenge modes include Challenges, Boost Rush and Coin Battle, and a player can also use a Mii character in those modes. A Super Luigi U expansion adds a faster and harder set of courses.