Area 1, originally known as Phase 2[1][2] (alternatively written as Phase Two[3]), is an area of SR388 in Metroid II: Return of Samus and its remake, Metroid: Samus Returns.

It is the second area Samus visits on her mission to exterminate all Metroids on SR388.


Area 1 is explored after the first Alpha Metroid on the Surface is defeated, causing the purple liquid to drain for the first time and opening access to Area 1. The area is set in and around a large Chozo settlement in the Power Up Cavern.

In Samus Returns, the area is still very close to the Surface of SR388, as rays of sunlight can be seen shining down from the ceiling. There are many natural waterfalls that have started flooding the Chozo ruins, resulting in many of the rooms Samus visits having a small layer of water at the bottom. In both SR388-set games, this area contains not only the Ice Beam, but also the Bombs and Spider Ball, making it the area where Samus will use her Morph Ball ability the most. In Samus Returns, this area contains a superheated room, which Samus cannot safely explore without the Varia Suit later acquired in Area 2.

Creatures and robots[]

Return of Samus[]

Samus Returns[]

Metroids fought[]

Both games[]


Return of Samus[]

Main article: Phase 2/Items

Samus Returns[]


In Return of Samus, Met2 Caverns3 plays through most of Phase 2, while SR388 Underground plays inside the Chozo ruins.

In Samus Returns, the theme of Area 1 is an arrangement of the original Met2 Caverns3 theme. It plays throughout Area 1, even inside the Chozo ruins. A remix of the Magmoor Caverns theme plays inside the optional superheated room.


  • In Samus Returns, the destroyed Chozo Statue in this area is the only one of four that is not explicitly destroyed by a boss character (being apparently instead destroyed by a cave-in). The other destroyed Chozo Statues were destroyed by a boss character (the one in Area 2 is destroyed by Arachnus, the one in Area 4 was implied to have been destroyed by the Diggernaut offscreen, and the one in Area 6 was also destroyed by the Diggernaut).



  1. ^ Nintendo Power volume 37, pg. 47
  2. ^ In Nintendo Power volume 31, "Phase 2" is the name of the purple liquid tunnels, while Phase 3 is the name of the main area. For consistency, Wikitroid opts to use the later naming scheme of volume 37 and Super Game Boy Player's Guide.
  3. ^ Super Game Boy Player's Guide pg. 39