Phaaze

Phaaze is the final location Samus Aran visits in Metroid Prime 3: Corruption and the source of Phazon. From Phaaze, the Leviathans are created and sent into space to corrupt planets, such as Tallon IV, Aether, Norion, Bryyo, Elysia, and the Space Pirate Homeworld.

Features
Phaaze is a sentient planet. Inside the planet is a womb where Leviathans are created and grow. Once they mature, they leave Phaaze and corrupt planets with Phazon. As the Leviathan corrupts the planet, it takes control of a native creature and corrupts it to protect its core, such as a Tallon Metroid which was corrupted into Metroid Prime, and protected the core of the Leviathan that corrupted Tallon IV. It is likely that the Emperor Ing was meant to protect the core of the Leviathan that corrupted Aether, and that it was originally a native creature to Aether. This would explain the Ing hoarde's resistance to Phazon.

Life
All life on Phaaze is Phazon-based. Phazon Metroids and Hopping Metroids are abundant, as well as Phazon Puffers and Phazon Hoppers. In addition to this, many unknown life-forms inhabit Phaaze. Some infant Leviathans can be found on the planet as well.

Samus's arrival
After arriving on Phaaze, Samus' Phazon corruption reaches critical levels, causing her to remain in hypermode permanently. Samus becomes so corrupt, she looses access to her ship for the rest of the game.

Also, all energy tanks are "filtered", and a yellow bar at the top of the HUD is there in its place. As time goes on, this bar will fill up. The bar also fills up when damage is taken. The bar will deplete when units of "Anti Phazon" are absorbed, or when using the grapple lasso to expel energy/phazon into an enemy.