"Chozo script translated."

This article's name is an unofficial translation from official Japanese media and may not represent the canonical English name, if one exists.
An alternate name from an official source may be required.

Zazabi (ザザビー?),[1] also known as the Giant Plant,[2] is the second boss Samus Aran faces aboard the Biologic Space Laboratories research station in Metroid Fusion.


Zazabi is a tall, segmented creature[3] that resembles an enormous, one-eyed sea medusa. Its upright, segmented body is transparent, leaving its purplish organs visible within. Its "head" sports five sensory appendages on top, and houses its single, giant purple eye. Its mouth is located on the underside of its body, and it uses the eight teeth for locomotion as well as consumption: When prey is close, the Zazabi will leap up, expand its mouth, then slowly descend around the creature, trapping it in its body. However, the Zazabi is vulnerable to attack while its mouth is open: When it receives a certain amount of damage, a section of the tall creature's body will collapse, causing it to become increasingly shorter each time.


At some point, a Zazabi specimen was kept by a faction of the Galactic Federation in Sector 2 (TRO) of the Biologic Space Laboratories research station. When an outbreak of X Parasites spread to the tropical sector, Zazabi was infected by an X possessing Samus Aran's Hi-Jump and Spring Ball abilities.

When Samus entered the boss's steep chamber, she witnessed the Core-X combining with several smaller X to mimic the Zazabi's shape and form. After it attempted multiple times to devour her, the Zazabi was eventually cut down to size and exterminated by the bounty hunter, who regained her lost abilities by absorbing its Core-X.


The organism attacks by jumping across the room and then slowly flying down on Samus. As it is flying down, its mouth, located on the bottom of its body, opens up. When the mouth is opened, Samus can fire Missiles or charge shots into it to damage it. If Samus is grabbed by the plant's mouth, she gets caught inside and forced into her Morph Ball form. She is then pulled through its body layers to the top to be fed on. She has to lay multiple Bombs depending on its health to be freed.

After a certain damage threshold, a layer of the plant's body disappears, decreasing its stature but increasing its speed. Once all three layers disappear and Samus wounds Zazabi further, it will transform into a Core-X. After defeating the Core-X, Samus gains back her High Jump and Jump Ball abilities.


  • Zazabi's form is similar to that of a human cone cell, notably found in the eye.
  • Zazabi is reminiscent of the battle against the Queen Metroid on SR388 in that they both require the use of Bombs to escape from their maws when Samus is trapped in their bodies.
  • On Easy mode in the Japanese version of the game, Zazabi will always open its mouth when it jumps.
  • Advanced weapon upgrades acquired through hacking do not harm Zazabi.
    • If Morph Ball is disabled, Samus will still be forced into it if grabbed.
  • Zazabi shares its battle theme with the Barrier Core-X.
  • Chisato Morishita, who portrayed Samus in the Japanese Metroid: Zero Mission commercial, was asked by Yoshio Sakamoto to play Fusion in preparation. Morishita later reflected that she had trouble defeating Zazabi.
  • A flashback of Samus's battle with Zazabi in Fusion appears in the Discover the Hunter Trailer for Metroid Dread.