Top 100 Portal 2 Videos With The Longest Duration by Mon Frere Gaming ChannelTop 100 » 200 » 300 » 400 » 500Video TitleDurationCategoryGame1.Portal 2 CO-OP with James - Part One - F**k Glados17:48Portal 2 2.Portal 2 CO-OP with James - Part Two - Ball struggles17:26Portal 2 3.Portal 2 CO-OP with James - Part Three - TECHNIQUE16:13Portal 2 4.Portal 2 CO-OP with James - Part Four - The Long Challenge16:13Portal 2 5.Portal 2 CO-OP with James - Part Five - How many steps...13:33Portal 2 Top 100 » 200 » 300 » 400 » 500