I'm pretty much over the Guitar Hero type videogames, but I still appreciate a good hack. Gizmodo explains:
The twisted brainchild of Chris Marion, interfaces a Guitar Hero guitar with a microcontroller, which in turn powers relays that activate solenoid valves on five fire poofers. That's when AC/DC and Motley Crue get combustible.
So basically, it's a dude with a ton of free time on his hands. Watch a second video (of Motley Crue) after the jump and check out Chris' detailed instructions on how you can pull this off yourself right here.
