The Third Bomb Component is the third and final acquirable piece of the Theronian bomb, and also the only one in Western SkyTown. This component is the first one that Samus Aran passes by and does not take great notice of it when on her way to cure Aurora Unit 217. Following 217's activation, he calculates a plan to destroy the Elysia Seed. Since Elysia is a gas giant, Samus will not be able to destroy the Leviathan Shield Generators underneath the dense clouds. Instead, she must assemble the Theronian bomb, a thermonuclear explosive device that will destroy the Leviathan Shield itself. However, Samus cannot lift the components herself. 217 first requests that Samus find the SkyTown Federation Landing Site to obtain a special upgrade for her gunship, the Ship Grapple.