Top 100 Most Controversial Portal 2 Videos by MercaderGamingTop 100 » 200 » 300 » 400 » 500Video TitleRatingCategoryGame1.Merc Derps Around... WITH PORTALS! 4 - Portal 2 Gameplay/Commentary143Portal 2 2.Merc Derps Around... WITH PORTALS! 2 - Portal 2 Gameplay/Commentary173Portal 2 3.Merc Derps Around... WITH PORTALS! - Portal 2 Gameplay/Commentary194Portal 2 4.Merc Derps Around... WITH PORTALS! 3 - Portal 2 Gameplay/Commentary220Portal 2 Top 100 » 200 » 300 » 400 » 500