The Mystic Cloud Key is a level game mechanic which firstly introduced on Version 2.5.0 on Cloud Land 1. In a level in which such key is found, it will stand in front of a cloudy patch, covering a fixed amount of tiles, similar to the evil fog. A Silhouette of an Object will be found beneath the key. In order to achieve the key and unlock the clouded land, the player needs to find an Object that match the silhouette and drag the object into the silhouette. Once done, a sound identical to removing the evil fog patches in camp will be heard and the items under the clouds would be removed. The items beneath the clouds can be either healed or require healing power.