Area 8, previously known as Phase 9[1] (alternatively written as Phase Nine[2]), is the ninth and final area explored on SR388 in Metroid II: Return of Samus and its remake, Metroid: Samus Returns.


In Return of Samus, Phase 9 begins with narrow tunnels winding upward to a massive open cavern. Starting with the liquid-filled hall, these tunnels have pools of an unidentified liquid. If Samus steps in certain pools, she will fall through fake ground and be dragged down to the bottom of the tunnel network. The massive cavern is home to several Septoggs, which can assist Samus traveling to the top. There, she will find the apparent ruins of a Chozo settlement, containing a Big Energy Ball and Missile Battery; a destroyed Chozo Statue that once held an Ice Beam; and the entrance to the Metroid nest. A secret exit in the Queen's nest will return Samus to the destroyed Chozo Statue, allowing her to recharge her energy and missiles before returning to the fight.

In Samus Returns, Area 8 is an odd ecosystem containing green webbing; pulsating fungi-like vegetation; a yellow liquid flowing from odd formations in the ceiling; large spikes; and other substances found exclusively in rooms occupied by Metroids. This suggests that Metroids warp their environment to resemble their preferred habitat.

Despite this area being the main hive of the Metroids, most of it seems to be synthetic and artificial. Glass tubes and temple-like structures can be seen throughout Area 8, strikingly similar to those from the Chozo laboratory in Area 7. Many guardian robots such as Autracks and Gunzoos can also be found in this area in the remake. This might be heavily hinting on the existing connection between the Chozo and their creations, the Metroids.

Once Samus enters the Metroid nest in Morph Ball mode, she passes underneath a single Metroid Egg in a cavern, and then her Metroid Detector suddenly reacts to the presence of Metroid larvae. She proceeds to exterminate these larvae and the Queen Metroid itself.

As she leaves the nest, Samus discovers the Metroid Egg and witnesses it hatching, giving birth to an Infant Metroid known as the baby. As it imprints on her as its mother, Samus chooses to take it with her back to the Surface, through a tunnel that gradually shifts from Area 8's aesthetics to the Surface's terrain. As it orbits around her, the baby carves out otherwise-indestructible crystals blocking the way. In Return of Samus, the tunnel is completely empty; in Samus Returns, there are many weaker enemies and item expansions along the way. This sets in motion the events of Super Metroid and subsequent sequels.

Creatures and robotsEdit

Return of SamusEdit

Samus ReturnsEdit


Return of SamusEdit

Samus ReturnsEdit


Return of SamusEdit

Main article: Phase 9/Items

Samus ReturnsEdit


In Return of Samus, a dark and sinister theme is carried over from Phase 8 and continues to play in the lower tunnels flooded with viscous liquid. Metroid Nest plays as Samus enters the Metroid hive. Once she detects the Metroid larvae and proceeds to hunt them down, Metroid Nest continues playing at a higher pitch. An ambient droning plays in the corridor leading into the Queen Metroid's lair. Met2 Metroid Hatching plays upon the defeat of the Queen Metroid and the hatching of the baby Metroid.

In Samus Returns, the Area 8 theme plays in the lower tunnels flooded with yellow liquid. Metroid Nest starts playing slightly earlier in the large shaft leading to the Metroid hive, but is now replaced by a sped-up techno remix of the Tourian theme once she detects the Metroid larvae. Met2 Metroid Hatching once again plays as Samus and the baby journey through the tunnels leading to the Surface.


  • In Metroid II, the Ice Beam is the only item here because it is required to defeat the Metroids in the area. In the room containing it, the Chozo Statue supposed to hold it is broken, with the head being nearby. The Item Sphere containing the beam is right behind it. It is possible that the Metroids, perhaps the Queen herself, were aware of the item being held by the statue and knowing the danger it posed for them, attempted to destroy it.
    • As the Ice Beam is a standalone beam option acquired once in Area 1, this Chozo Statue does not exist in Metroid: Samus Returns.
  • Area 8 is the most depicted area of SR388 in other media and games, as it is featured in flashbacks of the baby hatching.
  • In Metroid II, the hole that leads to the Queen Metroid's domain is uncovered, whereas in the remake, the hole is covered with a thin layer of rocks that Samus drops through as soon as she sets foot on it. 



  1. ^ Nintendo Power volume 37, pg. 53
  2. ^ Super Game Boy Player's Guide pg. 43

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