Reactor Core (Frigate Orpheon)

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Reactor Core
Reactor Core

The Reactor Core

Game Metroid Prime

Frigate Orpheon

Connected Rooms
This article is about the room on Frigate Orpheon. For the room on the Crashed Frigate, see Reactor Core (Tallon Overworld).

The Reactor Core is the location of Frigate Orpheon's power generator and where Samus battles a Parasite Queen and then evacuates during the countdown. It is entered through Reactor Core Entrance and escaped through Deck Gamma Monitor Hall. Once Samus leaves the room, she cannot re-enter.[1] After Frigate Orpheon's crash into Tallon IV, the submerged Reactor Core becomes home to several aquatic creatures and Aqua Pirates.


The spacious room houses Orpheon's reactor, contained by a rotating force field. At the entrance of the Reactor Core are the bodies of several Space Pirates that were apparently killed by the Parasite Queen. In terms of color, the bright orange and black contrasts with the rest of Orpheon's dark black and grays. There are many monitors encompassing the circular room, however none can be scanned. When Samus enters the main section of the room, the Parasite Queen sits in the main section of the core.

Once Samus defeats the Parasite Queen, it plummets into the bottom of the reactor, causing an overload in the core. It begins to melt down, giving Samus some time to escape before damaging the frigate out of orbit. After Orpheon falls onto Tallon Overworld, the Reactor Core remains and is revisited by Samus.


Available Logbook Entries



Creature Number Encountered
Parasite Queen 1  Boss Battle on only visit  



  1. "This door has been sealed to prevent radiation leaks." —Scan Data (Metroid Prime)
  2. "Analysis detects large amounts of blood missing from the carcasses. These bodies may have been used for nourishment. Pattern consistent with predator behavior." —Scan Data (Metroid Prime)
  3. "These creatures still contain a heat signature. They have not been here for very long." —Scan Data (Metroid Prime)
  4. "No life signs detected." —Scan Data (Metroid Prime)
  5. "Entrance to Deck Gamma Monitor Hall" —Scan Data (Metroid Prime)

Language Name Meaning
Spanish Núcleo del Reactor  Reactor Core  
German Reaktorkern  Reactor Core  
Italian Nucleo del Reattore  Reactor Core  

Rooms in Metroid Prime
Phendrana Drifts Phazon Mines Impact Crater
Frigate Orpheon Tallon Overworld Chozo Ruins Magmoor Caverns