Top 100 Most Controversial Portal Videos by Nicholas Petris GamingTop 100 » 200 » 300 » 400 » 500Video TitleRatingCategoryGame1.Portal (2007) 1st playthrough pt 2 Adv Ch 18, then challenges & achievements | My 218.5th livestream1Let's PlayPortal 2.Portal (2007) 1st playthrough | My 218th livestream4Let's PlayPortal Top 100 » 200 » 300 » 400 » 500