Crowns are a recent addition in Rolling Sky. Like the Gems, Crowns are optional collectibles, so far only found in Monody, Joker, Mental Rave, KungFu, Forest,Poker, Reggae, and Relics. They appear to be yellow in colour regardless of the colour scheme of the level. The other levels that contain crowns are obtained via Mystery Boxes that sometimes spawn. Crowns are usually tremendously difficult and much harder to earn than Gems.