|The following is based on developer test content cut from Fallout: New Vegas and has not been confirmed by canon sources.|
The Green Room is a test cell in the game files of Fallout: New Vegas.
It is a large, rectangular room with dark tile floors, and white, peeling walls and ceiling. It contains a noticeable thick fog, and a single NPC named "Recruit Legionary".
This NPC is the "voice activator" for Lupa's lines during his radio communication with Ronald Curtis, during the quest I Put a Spell on You.
Green Room appears only in the game files of Fallout: New Vegas, but should not be considered canon because it is a test cell.