Thu, Sep 09, 2010 | 20:33 BST
Valve releases HD version of Portal 2 co-op trailer
Valve has released an HD version of the Portal 2 co-op trailer complete with Glados commentary, and we have it posted for you below.
The co-op portion of the game features its own playable characters, story, tests, and may be played in split screen on the consoles or over a network connection.
Portal is out on Mac, PC, PS3, and Xbox 360 February 9.
Checkout our impressions of it here.