Access through the room is blocked by a heavy-duty Security Gate. Behind the gate is a small cave, the floor of which is completely covered with Phazon. The gate's purpose is likely a safety mechanism to prevent unshielded workers from coming into contact with the substance.
It can be accessed by Samus after the defeat of the Omega Pirate. After this, she will have the Phazon Suit to render the Phazon completely harmless. An Energy Tank sits right near the entrance from the Elite Quarters in the center of the tunnel. The large gate lies after the Tank, requiring Samus to scan an Interface Module to open it. Since the gate can only be opened from the Elite Quarters side, the Elite Quarters can not be accessed early by Samus via the Phazon Processing Center except through Sequence Breaking.
- Energy Tank
- See above.
- Interface Module
- "Security Gate disengaged. Access granted."
- Security Gate (opposite side)
- "Security Gate locked down. The control system lies on the other side of the gate."
- There is an unused layer in this room that would have allowed three invisible Pulse Bombus to roam the Phazon section of the hallway in a similar fashion to Quarantine Access B (which does use three invisible Pulse Bombus).