Welcome to the Aperture Science Computer-Aided Enrichment Center.. Today, you will be testing alone. Just with me here to watch you. My name is Fenton, your leading A.I. Allow me to show you around.. You'll be testing with dozens of deadly elements! I hope you're as excited as I am, because we have a lot of testing to do. Go into the next room, pick up your portal device, and let's start the testing..
A few pictures of the hub, the area where most of the game will take place.