A Phazon Leech is a small organism found in large numbers in Metroid Prime 3: Corruption that feeds on the bioenergy of dead or wounded creatures. They are often found in swarms. They are found on the G.F.S. Valhalla and within the Elysia Seed.

They do not present a threat in any way, but a large swarm of them can deal adequate damage.

Killing all of the Phazon Leeches within a Leviathan will earn Samus the "Exterminator" Friend Voucher.


Logbook entry[]


Phazon Leech

Metroid Prime 3: Corruption

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Morphology: Phazon Leech
Nonaggressive scavenger that feeds on wounded and dead bioforms.

Logbook entry

Phazon Leeches thrive on the bioenergy drained from weakened and dead prey. They often roam in groups, leaving behind toxic trails as they slide across terrain in search of sustenance. Their bodies are soft and unprotected, making them easy targets to dispatch.


  • The fact that these creatures are small, unimportant life forms, and that they feed on corpses makes them similar to Sbugs in Super Metroid. However, unlike Sbugs, Phazon Leeches do cause damage if they come in contact with Samus, and can be killed.