Arctic Mirus on the other hand have blue Arctic Miru Eyes that cannot be used in the same recipes, just as ordinary fiery red Miru eyes cannot be used in recipes that demand Arctic Miru eyes. Dark green ordinary Mirus with golden eyes live in caves and underground on the Stalactite layer. They mainly spawn on Siltstone or Stalactites in the darkness. They can ascend from this layer easily and so can even come out of caves to the surface at night. But if sunlight hits Mirus, they will burst into blue flames and perish.