While there is no official game titled the name typically refers to either the official Wii U sequel, New Super Mario Bros. U , or various fan-made mod projects that have gained significant popularity. The Official "Sequel": New Super Mario Bros. U

There is no official Nintendo game titled . Depending on what you are looking for, you may be referring to either the official console sequel, New Super Mario Bros. U , or one of several popular fan-made projects . 1. The Official Sequel: New Super Mario Bros. U