The portal IGN has published a videoanteprima Portal contains two levels and some new scenes never seen before to help us understand the structure and mechanics as well as the graphics in the title. Among the sequences that you can view in this movie is also the probable introduction of the game with a bedroom completely destroyed, which is introduced in the laboratories of Aperture Science was almost like a kind of shuttle within the protagonist embodying Chell. Enjoy.

Portal 2 - A look at Portal 2