Portal 2 - Full Co-op Trailer
The full trailer of the Co-op bots as seen at PAX 2010.
Watch video Portal 2 - Full Co-op Trailer online without registration, duration hours minute second in high quality. This video was added by user Valve 10 September 2010, don't forget to share it with your friends and acquaintances, it has been viewed on our site 5,039,317 once and liked it 50 thousand people.