Top 100 Most Viewed Portal 2 Videos by MercaderGamingTop 100 » 200 » 300 » 400 » 500Video TitleViewsCategoryGame1.Merc Derps Around... WITH PORTALS! - Portal 2 Gameplay/Commentary12,694Portal 2 2.Merc Derps Around... WITH PORTALS! 3 - Portal 2 Gameplay/Commentary10,013Portal 2 3.Merc Derps Around... WITH PORTALS! 2 - Portal 2 Gameplay/Commentary9,645Portal 2 4.Merc Derps Around... WITH PORTALS! 4 - Portal 2 Gameplay/Commentary5,406Portal 2 Top 100 » 200 » 300 » 400 » 500