Rainbow Course

A Rainbow World is a special course found in New Super Mario Bros. 2. It can be triggered by finishing a level with the last two digits of the Time Limit being "xx", 'x' being the number of the world the player is on, which is followed by the original Super Mario Bros. "Course Clear" theme playing, along with a firework going off and a rainbow appearing. Then, Mario can then head to the beginning of the world, where a Rainbow World course has opened up. At the beginning of every Rainbow World, Mario must enter a Cannon Pipe to be launched into a Coin Heaven-type area with, of course, lots of coins, 10 Gold Coins, and even a single 100 Gold Coin. However, all Rainbow Worlds are slightly different from each other. If Mario falls off the course, he will not lose a life, but it will close up and Mario must redo the method of unlocking the Rainbow Course in order to access it again.

Trivia

 * The music is a sparkly remix of the New Super Mario Bros. Wii Coin Heaven theme.