Top 100 Portal 2 Videos With The Longest Duration by MrJarheadTop 100 » 200 » 300 » 400 » 500Video TitleDurationCategoryGame1.Unearthing The Hilarious And Unexpectedly Dark World of Portal30:44ReviewPortal 2 2.The Hilarious And Unethical Practices of Aperture Science1:00ReviewPortal 2 3.The Downfall of Aperture Science1:00ReviewPortal 2 4.Is This THE BEST Video Game Ending EVER?0:58ReviewPortal 2 5.A Brief History of Aperture Science0:58ReviewPortal 2 6.The Horrifying Origins of GLaDOS0:55ReviewPortal 2 7.THE FUNNIEST Moment In Portal #portal #foryou #gaming0:40ReviewPortal 2 Top 100 » 200 » 300 » 400 » 500