Valve today released Parts 2 and 3 of the Portal E3 Demo in HD. Parts 2 and 3 introduce players to “Excursion Funnels” and “Faith Plates,” two of the new mechanics in Portal 2 that may be leveraged for moving objects and yourself though the world.

Parts 4 – 7 will be released throughout the week. For more information, please visit www.thinkwithportals.com

httpv://www.youtube.com/watch?v=Afd-5bERESY

httpv://www.youtube.com/watch?v=Z2ojQ7Qnnzs