Top 100 Portal 2 Videos With The Longest Duration by Major Icons Studio (run by marjosonic)Top 100 » 200 » 300 » 400 » 500Video TitleDurationCategoryGame1.Live Play with marjosonic: Portal 2 Co-Op Episode 124:00Let's PlayPortal 2 2.Live Play with marjosonic: Portal 2 Co-Op Episode 2 Part 121:57Let's PlayPortal 2 3.Live Play with marjosonic: Portal 2 Co-Op Episode 2 Part 220:18Let's PlayPortal 2 Top 100 » 200 » 300 » 400 » 500