Through the game, he is stated to go from a sidekick to the primary antagonist, beginning to lose his grip on his humanity because the story progresses.
As he isolates himself from the folks around him, he is to lose contact with actuality. Valve are 7 years away from making a portal vr game for vive. I found myself entertained for the first few puzzles, buzzing across the Aperture Science Laboratories like an excellent little lab rat, but I kept questioning when …