I can think of a few ways to blow 12 minutes, but if you're reading this, here's the best way right now: 15 minutes of gameplay footage from Batman: Arkham City. Enjoy.
Batman: Arkham City is out October 18 which is so, so long from right now.
Details leaked for reported fourth and final Arkham game, Batman: Arkham Knight
9:03 AM on 03.04.2014