Phazon Core (creature)

Phazon Core
A Phazon Core is found in the center of all leviathan. Samus encounters them in Metroid Prime 3: Corruption after defeating the core gaurdian. Before revealing the core Samus must use the power-up received after the battle (Hyper Ball, Hyper Missile, or Hyper Grapple) to destroy certain objects around the room. Destroying them causes phazon to go into a hole in the ceiling and the phazon core comes out. Samus must vent the extra phazon out of her suit to destroy it. As Samus leaves thecore falls to the ground and explodes sending phazon flying everywhere. As Samus's ship flys away (Prime Trilogy and PAL version only) the leviathin can be seen exploding and collapsing, bringing a stop to the spread of phazon to that planet.

Trivia
- In Metroid Prime even though Samus goes to the room that would hold the core, it is missing. This lead to a theory that Metroid Prime completely absorbed it.