Each world has a hidden Rainbow Course filled with ordinary coins. These bonus stages contain no Star Coins or Moon Coins.
Match the timer at the Goal Pole
Finish a course when the last two digits of the timer match the world’s number. The first digit can be anything: for example, 211 or 111 works in World 1. Wait on safe ground near the Goal Pole, then time your jump so that you touch it at the required moment.
- World 1 — timer ending in 11 (X11).
- World 2 — timer ending in 22 (X22).
- World 3 — timer ending in 33 (X33).
- World 4 — timer ending in 44 (X44).
- World 5 — timer ending in 55 (X55).
- World 6 — timer ending in 66 (X66).
- World Mushroom — timer ending in 77 (X77).
- World Flower — timer ending in 88 (X88).
- World Star — timer ending in 99 (X99).
The bonus course appears on that world’s map. If you miss the timing, replay a short course and try again.