Superstar Road

Superstar Road is the ninth and final world of New Super Mario Bros. U. It is similar to World 9, but is also an homage to Star World from Super Mario World. The portal to this world is on an island between Sparkling Waters and Acorn Plains. It can only be accessed via a pipe after completed the game. This is the only world where two of the power-ups from New Super Mario Bros. Wii, Propeller Mushrooms and Penguin Suits, can be found. There are a total of 9 levels in this world, 8 of which are only accessible by collecting all the Star Coins from each world while the last one can be unlocked by completed all other Superstar Road levels with 3 Star Coins collected.

Boost Rush Courses

 * Hammerswing Caverns - Superstar Pack
 * Lakitu! Lakitu! Lakitu! - Superstar Pack

New Enemies

 * Big Fuzzies
 * Cheep Chomps