Eyegore

Eyegore are enemies that appear in multiple Zelda games. In A Link to the Past, they are found in several dungeons, both in the Light World and Dark World. When you encounter them, their eye is closed and they are frozen in place like a statue. When Link gets near one, it will open its eye and come to life momentarily. This is the only time they can be damaged. The green Eyegore can be damaged with your sword. The red variant, however, is only able to be defeated with the Bow. Their only 3D appearance is in Majora's Mask within Stone Tower Temple as a Mini-Boss.