Imagination Orbs are large clusters of imagination trapped by a Maelstrom Generator on most unclaimed properties . In order to claim any property (other than Block Yard ), the player must fight through a pack of enemies in order to build a floating platform that will take them up to the Imagination Orb. When they jump into the Orb, the property is cleared and available for rent or claiming. The Block Yard is free however, and is the the only free property in the entire Lego Universe.