Top 100 Portal 2 Videos With The Most Comments by MercaderGamingTop 100 » 200 » 300 » 400 » 500Video TitleCommentsCategoryGame1.Merc Derps Around... WITH PORTALS! - Portal 2 Gameplay/Commentary63Portal 2 2.Merc Derps Around... WITH PORTALS! 2 - Portal 2 Gameplay/Commentary44Portal 2 3.Merc Derps Around... WITH PORTALS! 4 - Portal 2 Gameplay/Commentary28Portal 2 4.Merc Derps Around... WITH PORTALS! 3 - Portal 2 Gameplay/Commentary19Portal 2 Top 100 » 200 » 300 » 400 » 500