Top 100 Portal 2 Videos With The Most Comments by Major Icons Studio (run by marjosonic)Top 100 » 200 » 300 » 400 » 500Video TitleCommentsCategoryGame1.Live Play with marjosonic: Portal 2 Co-Op Episode 2 Part 10Let's PlayPortal 2 2.Live Play with marjosonic: Portal 2 Co-Op Episode 2 Part 20Let's PlayPortal 2 3.Live Play with marjosonic: Portal 2 Co-Op Episode 10Let's PlayPortal 2 Top 100 » 200 » 300 » 400 » 500