Portal 2 Teaser Trailer (video)

From the Portal Wiki
We're a lot alike, you and I. You tested me. I tested you. You killed me. I--oh, no, wait. I guess I HAVEN'T killed you yet. Well. Food for thought.
GLaDOS

Portal 2 Teaser Trailer is a video which was released by Valve on June 15, 2010 in order to promote Portal 2. The video features a mixture of pre-rendered and in-game footage that showcases the Aperture Science Facility in which Portal 2 is set, and also reveals that GLaDOS will be an integral part of the game.


Teaser trailer video transcript