The other room was sterile looking, and appeared to have no signs of any cameras or ways for Arcade to track Mary. Instead, there were some giant words written on the wall.

"Cowboy World" was written on the world behind her and "Space World" was written on the one in front of her. She appeared to be in a narrow hallway, outside of her Murder World part, and perhaps in the main system? Where-ever she was, she was safe... for now.