Hydrodynamo Station is a room in the Torvus Bog in Metroid Prime 2: Echoes. It is a large, cylindrical room that features four platforms that rotate around the central pillar. Several locks exist in the room; they must be scanned from behind to lift them and allow Samus to enter the Hydrodynamo Shaft. Samus must traverse through the connecting rooms to gain access to these locks.

The Dark Aether version of this room was the Undertemple Shaft.

Connecting rooms[]


Preed (spawning from two hives, only 2 max at any time)
"Morphology: Preed
Toxic gas-filled cybernetic bioform.
Engage target at range if possible. Destruction of outer body will release a highly toxic cloud."
2 Bloggs (first visit)
"Morphology: Blogg
Incredibly durable aquatic predator.
Powerful, fast-moving water dweller. Outer hide is impervious; heavy weapon hits will only aggravate it. Its mouth, however, is vulnerable to damage."
4 Blogglings (on later visits)
"Morphology: Bloggling
Youthful, aggressive Blogg.
Violent infant creature. Will use a ram attack if provoked."


Control pillar (too far away)
"Unable to scan target. Local interference blocking Scan Visor.
Recommend scanning object from close range to counter the interference."
Control pillar (wrong side)
"Unable to scan target. Local interference blocking Scan Visor.
Recommend scanning object from opposite ide to gain a direct connection. The ledge it is on cannot be reached from this area; seek an alternate route."
Control pillar
"Security interface initiated.
Security lock disengaged.
Disengage all locks to gain access to secure area."
Morph Ball Door
"Structural analysis complete.
Exit point for Central Flow Chamber. Exit is one way only; unable to access from this area."
Missile Expansion
"Missile Expansion
Increases the number of Missiles you can carry by 5."
* Kinetic Orb Cannon hologram
"Enter hologram in Morph Ball mode to fire Cannon."

* Note: text is centered-aligned in scan, unlike the others which are left-aligned.


Missile Expansion
This item lies in front of a Multi-Lock Blast Shield.


  • Humorously, if a Blogg comes in contact with a lock when it is lifting, it will be instantaneously destroyed.
  • In addition, a Blogg can die if it comes into contact with a flipped over Concealed Movement Pad.