Swim for Your Life!

Swim for Your Life!, or Superstar Road-3, is the third course of Superstar Road in New Super Mario Bros. U. It is unlocked when the player collects every Star Coin in Sparkling Waters.

Layout
The course is based of the underwater levels in Sparkling Waters. For the entire duration of the level, the player has to swim away from a Cheep-Chomp while avoiding Urchins, Cheep-Cheeps, and Spiny Cheep-Cheeps. The Cheep-Chomp can help defeat enemies as well.

Star Coins

 * Star Coin 1: The first Star Coin is surrounded by a group of four Urchins. The player can defeat the Urchins himself or herself, or allow the Cheep Chomp to defeat the Urchins for them.
 * Star Coin 2: The second Star Coin is found between two water jets that constantly move the coin's location.
 * Star Coin 3: At the end of the course, two Urchins block the final Star Coin. They must be defeated in order to safely get the coin.

Enemies

 * Cheep Chomp
 * Cheep-Cheeps
 * Urchins
 * Spiny Cheep-Cheeps