"Illusion" is the first level of its kind, as it can only be unlocked by completing 70% of Level 1. It was added to the game after Level 12: Ghost Dance and before Level 13: Deep Space. Its main theme is the Neon theme. The level made its debut on November 19, 2016. You can see how to complete Illusion with all gems here:
- The level picture in the Level Select Screen shows a little star saying "Bonus".
- This is the only bonus level without custom soundtrack.