The Lava Monsters are the antagonists of the 2010 Power Miners line. They have to be fought with water instead of dynamite and other tools, and reside in the molten lava chambers of the Earth, which are deeper than the caves in which the Rock Monsters dwell. The Lava Monsters are ruled by their leader, Eruptorr, who is somewhat similar in appearance to the large, throwing rock monsters of 2009. Lava Monsters are also in Rock Raiders. They were not released in sets, but they have been shown in books and games. Their appearance is similar to that of Rock Monsters, with a different color.