Unicorn is an object that exclusively only appears in Abobo's Big Adventure. Despite its name, it is not a unicorn at all, as it lacks a horn; it is a normal horse.
This horse along with the Peppermint is originally from Circus Charlie. It appears in Stage 4, where Charlie the Clown has to jump on trampolines then land on the horse.
Unicorn only appears in the "Luck Dragon Lunacy" minigame, it can be collected as a point.