Gyorm

Gyorms are enemies that appear in and. They are snail-like enemies that hide in a protective, spiked shell that hovers above ground. They can only be attacked by forcing them outside of their shells.

A Link Between Worlds
In A Link Between Worlds, Gyorms appear in the Swamp Palace. Their spiked shells are used as both a form of locomotion and defense, as a Gyorm cannot be harmed while hiding inside it. If Link attempts to strike them, they will quickly hide inside their shells. While they are not particularly aggressive, they will cause harm to Link if they come into contact with him. To defeat a Gyorm, they must be pulled from their shells using the Hookshot. Once dragged from the safety of their shell, they are far less mobile, and vulnerable to the Sword. They will quickly attempt to return to their shell, and must be defeated before they can.

Although encountered in watery areas, they may not be aquatic creatures at all, as dragging them out into deep water will cause them to fall in and sink. A Gyorm's empty shell can be picked up and thrown once it is defeated, and can be used to damage enemies or activate switches.

Tri Force Heroes
In Tri Force Heroes, Gyorms appear the same as they do in A Link Between Worlds. They are only encountered in the last Stage of the Cove of Transition, where they must be defeated to open the Triforce Gateway. As before, they must be pulled out of their shells by using the Gripshot. Gyorms will attempt to quickly return to their shells, so the Links must either be quick to attack it, or have one Link strike it while another one pulls it out.