"New Super Luigi U" is a downloadable expansion for the game New Super Mario Bros. U, featuring Luigi as the main character. Released in 2013, it offers a unique twist on the original game, with new levels designed specifically for Luigi's unique jumping abilities and physics. The game includes 82 challenging courses, each designed to be completed in a shorter time frame. Players can enjoy cooperative gameplay with up to four players, using characters like Nabbit and Toad. The expansion retains the vibrant graphics and classic platforming elements that fans of the Super Mario series love.