Well, that’s nightmarish.
Hey, there’s this blog called boingboing, maybe you should read it, it posts stuff like this. Or exactly this. http://boingboing.net/2014/10/19/watch-torturing-virtual-peopl.html
Aw, man, they got Waldo!
I have to say though…this is a brilliant defense for a horde of zombies. Think about it. large open space, 3 or 4 of these aligned with sharp edges for slicing and maximum devastation. Zombies just lumbering or even swarming if fast moving into them. Each swinging beam off set just so that zombies bounce between them being cut down.