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Phaaze (planet)
The planet Phaaze.
Location Circles a small star 361 light years from the federal area, "across the galaxy" from Aether [1]
Discovery date Between years 1 and 400 of Elysian reckoning.
Class Possibly Class XIII wasteland
Atmosphere 100% gaseous Phazon (if any).
Distinct features Living sentient planet, source of all Phazon.
Phaaze (area)
Phaaze atmo
Official artwork of Phaaze.
Planet Phaaze
Environment Phazon
Sub-Areas 4 sub-areas:
  • Sub-Level 1
  • Sub-Level 2
  • Sub-Level 3
  • Sub-Level 4
Bosses Aurora Unit 313, Dark Samus
Connected areas Only accessible using the Leviathan wormhole.
Distinct features Living sentient planet, source of all Phazon.
Map [2]
''A large bioform is creating a wormhole...

...Implant into...
Sentient planet which is the source of all Phazon.
...Darkness coming."''

Aurora Unit 313

Phaaze (so named by the Space Pirates and the Galactic Federation) was a sentient planet and the source of all Phazon. It is the final location Samus Aran visits in Metroid Prime 3: Corruption, and by extension, the entire Metroid Prime Trilogy. From Phaaze, the living meteors known as Leviathans were grown and sent into space to corrupt planets. The known planets hit by Leviathans were Tallon IV, Aether, Bryyo, Elysia, and the Space Pirate Homeworld, though all were eliminated. A Leviathan was also sent to Norion, but it was destroyed before it hit the planet.

Features and HistoryEdit

Phaaze is a sentient planet. Within the planet are Serpentine wombs where Leviathans are born and grown. Once they mature, they leave Phaaze and corrupt planets with Phazon. Leviathans leave Phaaze every 100 years. As the Leviathan corrupts the planet, it takes control of a powerful local bioform and manipulates it to protect its core. After many years, the corrupted planet becomes a Phaaze clone.[1]

The planet is completely composed of Phazon. This may mean that there could be undiscovered strains of Phazon present on Phaaze prior to its destruction. The existence of Black Phazon Crystals was previously unknown until discovery of the planet.


Phaaze was first discovered by a Chozo Searcher on Elysia. A once-thought-lost probe began transmitting data on Phaaze. However, this data only revealed minor details about the planet. The Chozo Searcher learned that Phaaze was somehow "alive". Unfortunately, the data being collected was mysteriously lost before the Chozo could properly analyze it. Further research about the planet was next to impossible, as Phaaze was incredibly far away, even for Chozo space-travel standards.

Recent historyEdit

Pirate destroyer phaaze battle

The Space Pirates prepare to respond to the Federation attack on Phaaze.

After this, Phaaze would be undetected for many years. The next time that bioforms exotic to Phaaze would lay eyes on it would be when Dark Samus brought the Space Pirates there. Following the Space Pirate attack on the G.F.S. Valhalla, Dark Samus implanted Aurora Unit 313 into the planet itself, allowing her to control the planet and its resources.

Finally, the Galactic Federation tracked the origin of the Leviathans to Phaaze. They began preparing to travel there to put an end to Phazon's destructive power. After taking control of a Leviathan Battleship circling the Pirate Homeworld and warping there, the Federation engaged the Space Pirate fleet in orbit above the planet while Samus headed down there to find Dark Samus.

After traveling through Phaaze's depths, Samus confronted Dark Samus. After they did battle, Dark Samus called forth Aurora Unit 313 and merged with it. Samus destroyed the corrupted Aurora Unit connected to Phaaze, and due to the symbiotic nature of this relationship, the destruction of the Aurora Unit caused a chain reaction that culminated in the destruction of Dark Samus and planet Phaaze itself.


Phaaze Unitdentified Creature 3

Aazelion, one of the strange bioforms dwelling on Phaaze.

Life on Phaaze is largely Phazon-based. Phazon Puffers, Phazon Hoppers, and Phaz-Ing are abundant, as well as mutated Metroids; the presence of the latter species can be attributed to Space Pirates and Dark Samus having transported them to the planet prior to the events of Metroid Prime 3. In addition to these creatures, many previously unseen bioforms inhabit Phaaze, some that are even unidentifiable by Samus' Scan Visor. All species were rendered extinct by the destruction of the planet.

Husks that are identical to Metroid Prime can also be found behind the Leviathan womb in the Genesis Chamber, though it is unknown if these are peeled/molted skin left by the Metroid Prime that dwelled on Tallon IV or if they belonged to other Primes living on Phaaze. It is likely there are more Genesis Chambers on the planet, but only one was seen in the entire game. The presence of the husks may indicate that the room was the birthplace of the Metroid Prime creature on Tallon IV.

Dark Samus also appears on Phaaze, as it is her base of operations, going as far as calling it her 'homeworld'. She can absorb energy from the planet itself to heal herself in battle. Aurora Unit 313 was located in the Sanctum, where she had been implanted into the planet's core.

A list of creatures that can be found inhabiting Phaaze is below:

Samus' arrivalEdit

Phaaze landing 2

Samus' Gunship enters the planet's atmosphere.

Seconds after arriving on Phaaze, Samus' Phazon corruption reaches nearly critical levels, causing her to remain in Hypermode permanently. Samus became so corrupted (though not completely, as she still retained her free will) that her Gunship no longer recognizes her, therefore denying her access to her ship for the rest of the game.

Also, all Energy Tanks are "vented", and a yellow bar at the top of the H.U.D. is there in its place, showing her Phazon level. As Samus is exposed to Phaaze's atmosphere, this bar will gradually fill. The amount of time it takes to completely fill up depends on the number of Energy Tanks collected throughout the game; the more Samus has acquired, the more time space in the bar and time she will have. Taking damage also fills the meter. The bar will deplete when "Anti-Phazon Units" are absorbed, when Phazon Puffers absorb her energy for an attack or when using the Hyper Grapple to expel energy/Phazon into an enemy. When the meter is maximized, Samus becomes fully corrupted, and the game is over as Samus turns into a new Dark Samus.


Metroid Prime Trilogy art bookletEdit

"No one knows when Phaaze was born.

A planet completely unique in an infinite universe, unlike any that came before it. Phaaze was alive. A conscious, sentient being.

Like all living creatures, Phaaze did its best to ensure the continued survival and prosperity of its race. Every 100 years, seeds, similar in form to meteors, would be fired from Phaaze to planets far away. These seeds, these children of Phaaze, were called Leviathans. Leviathans had the ability to generate wormholes, allowing them to travel to galaxies unbelievably far away.

When a Leviathan strikes a planet, it creates a Phazon Core which emits a strong toxin called Phazon all over the planet. Phazon is a powerful substance with the ability to completely corrupt living beings through genetic mutation. Over the course of a couple years, Phazon corrupts the entire planet, at which point the planet is reborn as a Phaaze clone."[2]

Unused Logbook entriesEdit

"What's the matter? All I said was that Komaytos look like little Metr—"

Non-canon warning: This article or section contains information that may not be considered an official part of the Metroid series in the overall storyline by Nintendo.
Logbook entries
Phaaze "Galactic Federation Datafile PZ-001.
Data moved to Logbook for review.

Phaaze is an organism of gigantic proportions, which consists entirely of Phazon. Phaaze orbits a small star 361 lightyears away from Federation space. Intelligence suggests that Phaaze itself is intelligent to a degree; the so-called "Phazon Seeds" are created and fired by it as part of its reproductive cycle. Many life forms are located on Phaaze, including several species of mutated Metroid. Dark Samus has a base of operations on Phaaze, and is apparently capable of causing the planet to discharge Phazon Seeds according to her own will."

Onslaught "Space Pirate data decoded.
Entry: (Onslaught)
Data moved to Logbook for review.
Entry 07.289.5

The fury of our leader is great. Many disciples have experienced her wrath since Urtraghus fell. However, despite our defeat, her confidence is unbroken. Soon the next phase of her campaign shall take effect against the Federation.

The Aurora has performed the last calculations. Our leader is ready to strike. Soon, Phaaze will sow a large number of Phazon Seeds. They will feel hundreds of Federation worlds. This blow may be the end of Phaaze, but our leader is without worry. For hundreds of live Phazon worlds will replace it."


Non-canon warning: Non-canonical information ends here.


The planet's name is likely a play on the word phase, which is one part or portion in recurring or serial activities or occurrences logically connected within a greater process, often resulting in an output or a change. Phaaze acts as the final phase of the Metroid Prime Trilogy, though it triggered the events of the entire series prior to the plot depicted.


  • The presence of mutated strains of Metroid and their hives, along with husks seemingly belonging to a single or numerous Metroid Primes living on Phaaze, have led some fans of the game to believe that Metroids are native to both SR388 and the Phazon planet. In addition, this also led to the theory of the final boss from the first Metroid Prime game having originated from Phaaze and reaching Tallon IV via a Leviathan. However, as a result of all official media related to the Metroid series stating SR388 to be the single homeworld of the titular species, it must be assumed that the Space Pirates and Dark Samus were the ones who introduced the Metroids onto Phaaze. The most consistent theory explaining the origin of Tallon IV's Metroid Prime can be found here.
    • The massive population of Metroids present on Phaaze can be attributed to a significant number of mutated individuals having reached reproductive stages, allowing them to spawn many of their lesser kind. The mutants able to reproduce are the Metroid Hatchers and the Metroid Prime, the latter of which is insinuated to have more than one individual existing on the Phazon planet by the time Samus Aran arrives.
  • The destruction of Phaaze due to the defeat of Aurora Unit 313 is very similar to the destruction of Zebes after Mother Brain is destroyed by Samus in Super Metroid.
  • Aurora Unit 242 is the one to inform Samus that the Galactic Federation named this planet "Phaaze". However, certain Space Pirate Data entries that can be uncovered before the transmission 242 gives use the same name.
  • AU 242 suggests the Pirate Homeworld may have also become a secondary Phaaze due to the mass corruption of Phazon and possibly transformed the said planet into another Phazon source as well.
  • Phaaze is the second planet to be destroyed in the Metroid series, preceded by Dark Aether, then followed by Zebes and SR388.
  • Phaaze played a crucial role throughout Metroid Prime Trilogy, being responsible for the "Great Poison" on Tallon IV in Metroid Prime and the splitting of Aether into two planets in Metroid Prime 2: Echoes.
  • When Samus first enters Phaaze, a cutscene is played of her ship entering the atmosphere. This is only one of two instances in which the cutscene is seen, the other being the arrival on Norion.
  • There is a possible mention of Phaaze in the Chozo Lore "Great Poison", where the Chozo theorize one planet once was coated with the Great Poison, and meteors from it spreading the Great Poison to the far corners of the universe, though this is primarily mentioned as a terrible "what if" from the Lore's writer.



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