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Tallon Metroid

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Tallon Metroid

Concept art of a Tallon Metroid

Main Species


Damages by

Energy Draining


Ice Beam

Vulnerable Area(s)


Natural Habitat(s)

Tallon IV

Located in

Tallon Metroids are a variation of Metroid that developed on Tallon IV. There are multiple differences between these and regular Metroids, which stem from developing on different planets. Unused design notes indicate that this environmental versatility is due to a Metroid's ability to adapt to survive in differing atmospheric and gravitational conditions, and varying gamma radiation levels.[1] These Metroids were introducted to these new environments by Space Pirates who were studying them for various purposes.

Tallon Metroids are the main type of Metroid encountered in Metroid Prime and Metroid Prime 2: Echoes. Tallon Metroid specimens are also mentioned in Metroid Prime 3: Corruption, though these are not actually interacted with in an non-mutated state at any point in the game.

History[edit | edit source]

Relocation and Study[edit | edit source]

Samus encounters a Tallon Metroid.

Metroids were first brought to Tallon IV from Zebes by Space Pirates.[2] Their research frigates transported these Metroids to their Research Headquarters in Phendrana Drifts where studies began on their ability to harvest bio-energy.[3] Developing in the unique environment of Tallon IV created the Tallon Metroid strain used in Space Pirate experimentation.[4] Preliminary interests in Metroids included potential domestication for use as weapons or power sources.[5] Their aversion to sub-zero temperatures was utilized by the Pirates in their studies, who often used cold containment below 10° centigrade and ice containment gear to render the test subjects docile.[6][7][8]

Discovery of the mutagenic substance Phazon on Tallon IV prompted a series of Phazon infusion experiments in organic and inanimate objects, including Tallon Metroids.[2] Phazon mutations resulted in heightened immunity to cold dampening fields,[9] mass increase,[10] heightened aggression,[11] mandible mutations,[12] and massive energy absorption capacity influx.[13] There were also negative backlashes such as internal organ degeneration,[14] and viral contaminations of Phazon batches led to termination of several test subjects.[15]

The Space Pirates developed Synthetic Metroid Rations to sustain Metroid test subjects, but Metroids were unresponsive and required bio-energy sources for nourishment.[16]

Aetherian Studies[edit | edit source]

Tallon Metroids were later transported to the planet Aether and studied there. The epidermis of Tallon Metroids raised on Aether had a red pigmentation, but they were otherwise identical. In addition to using them for bio-energy production, the Space Pirates made several attempts to domesticate Metroids. These attempts ultimately failed, and led to the termination of several untamed subjects and handlers.[17][18]

Because a lack of Phazon forced the Pirates to rely on Metroids for power, High Command authorized a mass breeding program for Metroids,[19][20] and the Pirates designed organic cocoons to be used in transporting Infant Tallon Metroids. Containment and handling of Metroids on Aether became increasingly abusive: subjects were harvested of their bio-energy to the point of cellular degeneration,[21] confined in containment fields that prevented them from entering sleep cycles,[22] and heavily injured as a result of escape attempts and use for target practice.[23][24][25]

Metroid Handling Protocols dictated that Metroids were not to be used for target practice or domesticated as pets.[26] The desire of Space Pirates to use Metroids for personal companionship may have stemmed from their inability to keep usual domestic animals, such as Gronkats and Olbaps, due to their susceptibility to Phazon madness.[27] Some Pirates apparently became attached to Metroid specimens in spite of protocols and even fed them pet treats, though these caused food poisoning.[28]

Dark Samus was suspected of stealing several Tallon Metroids from Space Pirate facilities.[29][30]

Pirate Homeworld[edit | edit source]

There is also evidence that Tallon Metroids were studied on the Pirate Homeworld.[31] A Phazon enhanced variant of the Tallon Metroid strain, called Phazon Metroids, are encountered on the Homeworld and other planets during the events of Corruption.

Pirates and Dark Samus seems to have used these Phazon Metroids to attack the G.F.S. Valhalla and steal Aurora Unit 313 on board. Phazon Metroids remain there through the end of the events in Metroid Prime 3: Corruption. Assuming that they remain there without being bothered, they would eventually die of starvation after draining life forms on the ship.

Biology[edit | edit source]

Differences from Metroids[edit | edit source]

Differences in Metroid strains appear as a result of development in different planetary conditions.[4]

Tallon Metroids are smaller than regular Metroids, and significantly weaker. While a Metroid takes five Missiles while frozen to kill, a Tallon Metroid only takes one. Tallon Metroids can also be destroyed by physical stress from gorging on bio-energy and by conventional weaponry. Tallon Metroids, like regular Metroids, can also be shaken off of Samus by a Morph Ball Bomb detonation. Although Tallon Metroids are weaker in their mature states, the variants created by Phazon mutation are stronger than a regular Metroid.

The Tallon Metroids that were taken by Space Pirates to Aether are red in color, but are otherwise identical to Tallon IV-raised Tallon Metroids.

While regular Metroids hatch from eggs laid by a Queen Metroid, Tallon Metroids appear to reproduce another way. The Space Pirates on Aether, who did not appear to possess a Queen Metroid, conducted a mass breeding program,[20] and the subsequent Infant Tallon Metroids were stored in artificial organic cocoons. The Tallon Metroid reproductive process is not divulged in Prime or Echoes. It is possible that Tallon Metroids were reproduced by some unnatural means by Space Pirates.

Morphology and Physiology[edit | edit source]

Tallon Metroid artwork
Tallon Metroid artwork

A Tallon Metroid consumes raw bio-energy from its victim using twin mandibles that are connected by means of energy conduits to the core of its quadripartite nucleus.[32] This nucleus replaces the need for any other internal organs, so Tallon Metroids lack discernible sensory organs or cardiovascular system.[33] The apparent lack of a brain in Metroid physiology may imply that it is equipped with a decentralized nervous system; evidence implies that the quadripartite nucleus replaces the brain function, as Space Pirate data would suggest.[34] The nucleus is contained by a transparent epidermis to which the large mandibles are attached. Apparently, Metroids have the ability to ingest solid food and possess a digestive system, though these appear superfluous.[16][28]

Absorbing energy causes a notable increase in size and mass.[35] The physical stress caused by gorging can be lethal, however.

Life-Cycle[edit | edit source]

Infant Tallon Metroid[edit | edit source]

Main article: Infant Tallon Metroid

Tallon Metroids begin their life-cycle in this infant stage. They lack mandibles or the ability to absorb bio-energy from prey in this developmental form, but will still ram enemies if threatened. They mature at once if exposed to Phazon radiation.

Tallon Metroid[edit | edit source]

The mature Tallon Metroid stage is the preferred maturation level for Phazon-infusion experiments by Space Pirates. The protruding tentacles of the infant stage have hardened into mandibles and all energy-siphoning processes are functional.

Hunter Metroid[edit | edit source]

Main article: Hunter Metroid

Hunter Metroids are a highly aggressive, efficient form of Tallon Metroid that possess an energy-draining tentacle for use in long-range battle. Despite its apparent superiority to prior stages, a Hunter Metroid is still vulnerable to sub-zero temperatures.

Variants[edit | edit source]

Fission Metroid[edit | edit source]

Main article: Fission Metroid

Fission Metroids are no longer vulnerable to cold attacks. These are mutants that are capable of splitting into two that are vulnerable to only a specific type of beam. Their name stems from their biological ability to divide.

Dark Tallon Metroid[edit | edit source]

Main article: Dark Tallon Metroid

These are Tallon Metroids possessed by the Ing. They are vulnerable to the Light Beam due to their Darkling nature. They can still be frozen by the Dark Beam, but it does not cause damage in itself.

Phazon Metroid[edit | edit source]

Main article: Phazon Metroid

Phazon Metroids are still vulnerable to cold, but are capable of shooting energy bursts and are able to "phase" through objects or shots.

Data[edit | edit source]

Logbook[edit | edit source]

Logbook entry from Metroid Prime: Metroid
First Location: Research Lab Aether in Phendrana Drifts
Energy-based parasitic predator.
The dominant species of planet SR388, Metroids can suck the life force out of living things. A Metroid will latch onto its prey and drain energy, growing larger as it does. The only way to shake an attached Metroid is to enter Morph Ball mode and lay a bomb.[36]
Logbook entry from Metroid Prime 2: Echoes: Tallon Metroid
First Location: Biostorage Station in Agon Wastes
Space Pirates harvest and enslave Metroids for use in their operations. The Tallon Metroid will latch onto prey with powerful pincers, then proceed to drain its life energy. This causes the creature to grow in size and mass. The creatures are vulnerable to the chilling effect of dark energy, and can be detached by entering Morph Ball mode and deploying a Bomb.[35]

Design Notes[edit | edit source]

The following design notes were written by the environment artist Matt Manchester to correspond with features put into the Metroid Processing chamber in Metroid Prime 3: Corruption. Several of these reference Tallon Metroids or the phenomena surrounding the development of new strains of Metroids raised on different planets.

Gallery[edit | edit source]

Images[edit | edit source]

Audio[edit | edit source]


  1. "Theoritical analysis suggests that the Metroid's environmental versatility is due in part to it's adaptness to survive in differing atmospheric conditions, marked changes in gravitational influence, and varying levels of gamma type radiation." Frog Skull: Metroid Prime 3: Corruption Art, Frog Skull
  2. 2.0 2.1 "Initial transfer of Metroids to Tallon IV research facilities has been completed. Three were terminated in an incident at the landing site, but the others were pacified and transported safely. Initial Phazon infusion testing is under way. We are eager to observe the effects of Phazon on Metroids, especially their ability to absorb and process the energy give off by Phazon sources. Early research suggest a considerable growth in power and size. Whether the creatures will stay stable thereafter remains to be seen." —Pirate Data "Metroid Studies" (Metroid Prime)
  3. "Zebes has fallen. All ground personnel are presumed dead, either killed by the Hunter clad in metal or in the subsequent destruction of the underground facilities. Our research frigates Orpheon, Siriacus and Vol Paragom were in orbit at zero hour and managed to retreat. Frigate Orpheon is now docked at Vortex Outpost. Orpheon's cargo appears to have a 100% survival rate; Metroids are healthy but on restricted feeding schedules due to uncertain supply status. We are ready to begin research on the Metroids and other promising life-forms. Security status remains at Code Blue; no signs of pursuit from the Hunter." —Pirate Data "Fall of Zebes" (Metroid Prime)
  4. 4.0 4.1 "Observations on Metroid native to different planets display subtle variations in biological processes." —Scan Data (Metroid Prime 3: Corruption)
  5. "Studies of Metroid biology continue, though with limited progress. It seems likely that we will be much more successful using the Metroids for our means rather than trying to reproduce their powers. If they could be adequately tamed, we would have no need of a proper understanding of their metabolism. A small force of disciplined Metroids could wipe out entire armies, and once we find a way to shield them from cold-containment weapons, they will be invincible. Furthermore, if we could then harvest the energy they'd consumed, we would have a near-limitless source of power at our disposal." —Pirate Data "Metroid Forces" (Metroid Prime)
  6. "Sub-zero temperatures have made the Metroids sluggish and easy to control, even those well into Phazon infusion cycles. Cold containment status are sufficient for the juveniles, but some of the larger Metroids have been moved to quarantine caves for safety purposes." —Scan Data (Metroid Prime)
  7. "Metroid containment fields appear 100% effective after adjustments. Temperatures below 10° centigrade will render Metroids docile." —Scan Data (Metroid Prime)
  8. "All guards must use ice containment gear when transporting Metroids. This includes sedated specimens and those pronounced dead." —Scan Data (Metroid Prime)
  9. "Hunter Metroid ds is showing signs of increased instability and a heightened immunity to cold damping fields." —Scan Data (Metroid Prime)
  10. "Phazon Infusion, Stage 6. Subject Metroid BR5497. Subject's mass at 180% of previous Phazon cycle. Increasing dosage by 4%." —Scan Data (Metroid Prime)
  11. "Specimen 102 >> Increased volatility recorded. Predator awareness indicated even in cold stasis." —Scan Data (Metroid Prime)
  12. "Phazon batch 1734.0 shows mandible mutations across all subjects. Cross infusion with batch 1622.G recommended." —Scan Data (Metroid Prime)
  13. "Mutation strain 776-V shows massive absorption capacity influx. Strain replication is now under way." —Scan Data (Metroid Prime)
  14. "Specimen 070 >> Optimal absorption mutation has led to unexpected degeneration of internal organs." —Scan Data (Metroid Prime)
  15. "Viral pathogens found in several Xenomes have been traced to Phazon batch 1664.2. Terminate all subjects." —Scan Data (Metroid Prime)
  16. 16.0 16.1 "Metroids are not responding to synthetic sustenance. We have reason to believe they only gain nourishment from active bio-energy sources." —Scan Data (Metroid Prime)
  17. "Termination Report 07.195.02
    Metroid unit 318 was put down today after a failed domestication session. Metroid unit refused commands and terminated one of its handlers before it was subdued.
    " —Scan Data (Metroid Prime 2: Echoes)
  18. "Training Report, 07.200.08
    Science Team believes the Metroids can be trained. After several cycles of trying, I believe Science Team has vapor for brains. I've lost two assistants to the wretched little things.
    " —Scan Data (Metroid Prime 2: Echoes)
  19. "Metroid Energy Report, 07.202.09
    Until we recover more Phazon, we rely on Metroids for power. Command has authorized mass breeding of Metroids for this purpose.
    " —Scan Data (Metroid Prime 2: Echoes)
  20. 20.0 20.1 "Production Report-Metroids 07.201.01
    Mass breeding of Metroids under way. We will meet Command's quota within a cycle. Storage remains an issue, recommended expansion of existing facility before a critical Metroid level is reached.
    " —Scan Data (Metroid Prime 2: Echoes)
  21. "Bioscan complete.
    Metroid subject has been energy-drained repeatedly over the last 3 cycles. Subject's cellular structure has become unstable as a result.
    " —Scan Data (Metroid Prime 2: Echoes)
  22. "Bioscan complete.
    Containment field is keeping Metroid subject in a constant state of agitation. It is unable to enter sleep cycles.
    " —Scan Data (Metroid Prime 2: Echoes)
  23. "Bioscan complete.
    Metroid subject has several blast wounds from Space Pirate weaponry on low-power settings. They wanted it alive after they were finished with it.
    " —Scan Data (Metroid Prime 2: Echoes)
  24. "Bioscan complete.
    Metroid subject is heavily scarred. Wounds appear to be from repeated contact with its containment field, most likely received while attempting to escape.
    " —Scan Data (Metroid Prime 2: Echoes)
  25. "Injury Report 07.200.07
    Unit 686 released a Metroid for target practice today: the Metroid then assaulted 686. He should be regaining brain functions in a cycle.
    " —Scan Data (Metroid Prime)
  26. "Metroid Handling Protocols, 07.202.02
    Metroids are not pets. Metroids are not for target practice. Finally, unauthorized feeding of Metroids is still strictly prohibited.
    " —Scan Data (Metroid Prime)
  27. "The keeping of pets has been suspended until further notice. Domestic beasts have been deemed highly susceptible to Phazon Madness, and are therefore a hazard to personnel. All Gronkats and Olbaps must be disposed of immediately. Failure to comply will result in the loss of pay for a cycle and reduced rations." —Scan Data (Metroid Prime)
  28. 28.0 28.1 "Bioscan complete.
    Metroid subject is suffering from food poisoning. It has ingested several pet treats and Space Pirate rations. These do not agree with its digestive system.
    " —Scan Data (Metroid Prime 2: Echoes)
  29. "Theft Report 07.196.05
    Three Metroids have been stolen. All on-duty units have been questioned. Whereabouts of Metroids unknown. Doubling security in Metroid areas until further notice.
    " —Scan Data (Metroid Prime 2: Echoes)
  30. "Security Report 07.199.07
    The Dark Hunter was spotted near the Metroid tanks. She attempted to breach the containment racks without success, then escaped. Perhaps she is behind the Metroid theft.
    " —Scan Data (Metroid Prime 2: Echoes)
  31. "Data decoded. Tallon IV specimen. Subject has been returned to its original research facility." —Scan Data (Metroid Prime 3: Corruption)
  32. "Metroid dissection continues to produce more questions than answers. Our research teams have isolated the energy conduits that run from the invasive twin mandibles to the energy core in the creature's quadripartite nucleus, but the manner in which the Metroid actually extracts the life force from its pray remains an utter mystery. The victim does not lose blood or any other vital fluids, and yet the Metroid extracts energy; identifying this energy is our central problem. It takes no physical form, and yet without it, the victim dies. We will continue to research this matter, as the isolation of this life-giving essence could be the key to our ascendance." —Space Pirate Data - "Metroid Morphology" (Metroid Prime)
  33. "Internal organs of Metroid seem to be limited to nucleonic absorption cells and massive energy reservoirs." —Scan Data (Metroid Prime)
  34. "Metroid brain scan results in. Studies show accelerated activity in parietal lobe during hunting cycles above 10° centigrade." —Scan Data (Metroid Prime)
  35. 35.0 35.1 "Space Pirates harvest and enslave Metroids for use in their operations. The Tallon Metroid will latch onto prey with powerful pincers, then proceed to drain its life energy. This causes the creature to grow in size and mass. The creatures are vulnerable to the chilling effect of dark energy, and can be detached by entering Morph Ball mode and deploying a Bomb." —Metroid Prime 2: Echoes Logbook "Tallon Metroid" (Metroid Prime 2: Echoes)
  36. "Energy-based parasitic predator. The dominant species of planet SR388, Metroids can suck the life force out of living things. A Metroid will latch onto its prey and drain energy, growing larger as it does. The only way to shake an attached Metroid is to enter Morph Ball mode and lay a bomb." —Metroid Prime Logbook "Metroid" (Metroid Prime)
  37. Frog Skull: Metroid Prime 3: Corruption Art, Frog Skull
  38. Frog Skull: Metroid Prime 3: Corruption Art, Frog Skull
  39. Frog Skull: Metroid Prime 3: Corruption Art, Frog Skull
  40. Frog Skull: Metroid Prime 3: Corruption Art, Frog Skull
  41. Frog Skull: Metroid Prime 3: Corruption Art, Frog Skull

Quad Creatures from Metroid Prime 2: Echoes    Warrior Ing
AetherDark AetherOffworld