This room connects to the Powerworks, where Aurora Unit 217 informs Samus that "Chozo Artifacts" (namely, the Spider Ball) have been located. Samus' access to a Morph Ball tunnel is restricted by an energy shield that is powered by an adjacent Grapple Voltage Terminal. To remove the shield, Samus must use her Grapple Voltage to drain the shield's energy. Once drained, the shield will disappear and Samus can continue on to the objective.
- Energy barrier
- "Energy barrier is being fed power via a nearby terminal. Lower shield to access tunnel."
- Grapple Voltage Terminal
- "Control terminal provides energy barrier with power. Drain energy to lower shield."