The Unicorn is a minor character in Candy Crush Saga. Tiffi encounters her at level 51 in the fifth episode Minty Meadow . She is crying because she loses her horn, After completing Level 65, Tiffi uses a trampoline to take some lolipops from the tree. This string becomes the recovered horn of the unicorn.
The Unicorn also makes a cameo in the episode Lollipop Lanterns, the fifth episode in the Dreamworld. There is no story that involves her but she can be seen in the background, but with a dreamy palette-swap.