I was searching for something interesting about crysis, and I found these funny videos:
http://crysis3game.com/cryengine-3-expiriments/

these videos in my opinion, are just showing a very bored people but it's funny though,
after I laughed a little and tried it myself, I must tell you:
these people have a VERY VERY strong computer, my computer was stuck and didn't work, even with half the barrels they put there, I had to restart it.

anyway, I thought you would like to laugh too, and don't try it, it seriously killed my PC when I tried that.