Portal 2 GamesCom 2010 Trailers
3:38 of gameplay footage
Valve has released two gameplay movies for Portal 2 showcasing this sequel set to be available on February 9th, 2011, for PC, Mac, Xbox 360 and PS3. Portal was originally released in 2007 and earned over 70 industry achievement awards.
Website: http://www.thinkwithportals.com/
