http://www.youtube.com/watch?v=Yg7-DDnRpXk&fmt=18

Forgot what they call this style of building jumping and such. It's something ninja dudes due in urban towns jumping from roofs, and stairs, in a stylish yet risky way. Parko, or something weird.

Edit: Parkour
Example videos of parkour.
http://www.youtube.com/watch?v=jquXcwooV6A
http://www.youtube.com/watch?v=wuV_ClreYIU

Mirror's Edge gameplay footage. (Parkour game)

Fail, Proid. That's 6 words.