Top 100 Portal Videos With The Longest Duration by Arcane GamerTop 100 » 200 » 300 » 400 » 500Video TitleDurationCategoryGame1.Portal 1 Full Playthrough & Cut Scenes I No Commentary #retrogaming2:22:21Let's PlayPortal 2."Part 5" Portal 1 Playthrough Level #19 END GAME! (& Yes, I Stayed for the End Song) I No Commentary57:16Let's PlayPortal 3."Part 4" Portal 1 Playthrough Level #18 I THIS ONE WAS INTENSE I No Commentary I #retrogaming24:43Let's PlayPortal 4."Part 1" Portal 1 Playthrough - No Commentary21:57Let's PlayPortal 5."Part 2" Portal 1 Playthrough Levels #13 - #15 - No Commentary20:43Portal 6."Part 3" Portal 1 Playthrough Levels #16 - #17 (Retro Gaming 2007)18:22Let's PlayPortal 7.Portal 1 Ending Song & Cut Scene3:08Portal 8.That Beautiful Ending Song to Portal 1 #shorts #portal #retrogaming0:51Portal Top 100 » 200 » 300 » 400 » 500