Step 1: calm down,
Step 2: take a deep breath,
Step 3: solves the test chamber without breaking your computer,
Step 4: have fun

Nice hard coop chambers.
(All chambers can be solved without glitches!)



I thank 2Nightmaren for the video! For more coop gameplay, visit this link :
http://www.youtube.com/user/2Nightmaren?feature=em-comment_reply_received