Octorok
The octorok is a sea-living creature with an annoying face. It is usually purple and fires nut like weapons at Link. When it spots Link, it will jump up out of the water, surprising him and firing a round and brown object at him. Link can destroy these enemies by holding his shiled infront of him, and reflecting the objects back at the Octoroks. In Majora's Mask, they can be frozen with an Ice Arrow to turn them into ice platforms that you can walk on.