The final demo was somewhat of a treat. In true Valve fashion I was thrust into a Portal based room with GLaDOS issuing commands over a loud speaker. The artistry was pure Portal through and through, with Portal 2 based figurines. GLaDOS issued commands to open drawers, which the game allowed you to open the wrong drawer twice before opening the right drawer. In the second incorrect drawer was a piece of really old cake, but there were experiments to run and research to be done – thankfully I was still alive so I continued with the demo and opened the right drawer which housed a small Portal stick figure community. Unfortunately GLaDOS told me that looking into the drawer would cause the community to worship me as a god and in the end we had to close the drawer and there was the sound of something burning. I then walked over to the other side of the room and was instructed to open a door via a lever, causing a damaged Portal 2 robot to stumble into the room and be attached to a harness. GLaDOS instructed me to repair the robot by pulling a few parts before giving some incomprehensible instruction that caused the robot to disintegrate. The robot parts were cleared and the walls dismantled to show GLaDOS who expressed disappointment - 'Oh, it's you...'. At this point I was on a small segment of floor while I could see far and wide into the Portal underground moving bits around, before the walls around me were quickly rebuilt into what looked like the start of a Portal level. There was even a companion cube.