Dark Samus

Dark Samus in Metroid Prime 3: Corruption.
Dark Samus
Base	Tallon IV
Debut	Metroid Prime

The dark duplicate of Samus formed from the remains of Metroid Prime and the Phazon originally infused in Samus's suit. Dark Samus serves no one save for her own constant need to consume Phazon.

Background

On Tallon IV, Samus Aran defeated Metroid Prime, a vile creature that was the source of the Phazon polluting the planet. While battling this creature, the Phazon Power Suit was absorbed and returned Samus back to her normal Power Suit. Unknown to Samus after she left, a creature emerged from the Phazon. This creature would become known as Dark Samus and come to be one of her greatest foes.

Dark Samus moved on to another planet to feed her constant need for Phazon to sustain herself. The planet Aether served this purpose well and Dark Samus seen began scouring the planet for Phazon. The Space Pirates on the planet were surprised by this 'Dark Hunter' that did not actively hunt them, but only killed Space Pirates that got in her way. When the Pirates discovered Samus and Dark Samus were separate entities, they attempted to ally with Dark Samus, but with no success. In the same vain, Dark Samus had little regard for the Ing or the Luminoth, as she simply disposed of whoever got in her way.

Dark Samus seemed to hold a particular vendetta against Samus Aran (perhaps indicating Dark Samus is Metroid Prime reborn). Samus Aran engaged and defeated Dark Samus two separate instances on Aether. Samus Aran engaged Dark Samus for a final time after defeating Emperor Ing. Dark Samus took great damage, but was relentless in its attack. With the last of its energy, it attempted to approach Samus Aran, but dissipated before it could. Although Samus Aran presumed Dark Samus to be destroyed, the dark hunter reformed in space above Aether, perhaps waiting to return again...

Trivia

• Although Dark Samus is chronologically the first of Samus's 'doppelgangers', SA-X appeared in Metroid Fusion in an earlier game.