Top 100 Portal 2 Videos With The Most Comments by PRGAMINGTop 100 » 200 » 300 » 400 » 500Video TitleCommentsCategoryGame1.Fun with PR moments 3: Portal 2 Co op0Portal 2 2.Fun with PR moments 3: Portal 2 Co op0Portal 2 3.Fun with PR moments 3: Portal 2 Co op0Portal 2 4.Portal 2 CO OP. Portal 70000Portal 2 5.Fun with PR moments 3: Portal 2 Co op0Portal 2 Top 100 » 200 » 300 » 400 » 500