This set includes 10 surprises to unbox, featuring gooey kitty litter compound among the hidden items. The Kittycorns have glow-in-the-dark eyes for added play value. Collectors can find 6 unique Kittycorns to adopt as part of this series. Each Rainbocorn has a peelable heart that reveals its favorite things. The set also introduces Boo-Boocorns, miniature versions of the Rainbocorns, as the smallest characters in Rainboville.