The Leviathan Shield is a model of gigantic Space Pirate shield. Designed around Leviathans, their purpose is to prevent any foreign interference with the Leviathan so that it may completely corrupt a planet. Two were seen in place over the Leviathans that impacted planets Bryyo and Elysia during the events of Metroid Prime 3: Corruption.
The Shield is a translucent blue and has pulsating blue nodes of varying shades. Two transmitters are in place opposite on the top of the shield. The transmitters receive power via two separate Seed Shield Generators. These Generators are forged of Maldium, and are thus immune to man portable weaponry. These two Generators are located nearby the Shield and are powered by a supply of Fuel Gel. On Bryyo, the Generators were situated above lakes of the substance, so had a near endless supply.
On Bryyo, the Pirates had fitted two Anti Aircraft Turrets at the West Generator in Bryyo Thorn Jungle, and were in the process of building another at Bryyo Fire. Samus Aran was able to destroy both Generators using her newly acquired Ship Missiles and disable the Leviathan Shield.
However, the Generators on Elysia were deep inside the clouds of the planet, and so were impossible to reach directly. Samus tracked down Aurora Unit 217 on SkyTown and he formed a plan to destroy the Shield. Samus was sent to assemble a Theronian Bomb, a weapon which could completely wipe out the Shield without destroying the Generators. The bomb was placed in the Spire Pod, which was detached from SkyTown and flew towards the Seed. Samus managed to reach the Leviathan after heavy Pirate resistance. She dropped the entire Spire on the Shield, an action which set off the Theronian Bomb and eradicated the Leviathan Shield. Samus escaped using a Chozo Escape Pod with seconds to spare.
The Leviathan on the Space Pirate Homeworld was protected by a planetary shield that covered the whole planet, and so it did not require a Leviathan Shield for protection.
- The Cipher on Tallon IV could be seen as a Seed Shield, although it hindered the Leviathan's corruption, rather than enabling it. In both cases the Shields acted to prevent beings from entering the Seeds.