The second and third installments in Valve's Portal 2 seven-part direct-feed trailer series from E3 2010 are now available. In Part 2 we are introduced to a new game mechanic of the "Excursion Funnels," which offer an alternate way to transport yourself and objects through the game world in the platformer sequel. Part 3 offers a brief introduction to "Faith Plates," which another alternate form of transport that looks convenient if you do not have a catapult handy. The embedded versions of both trailers follow.