A video just hit YouTube that was taken at some recent event which showcased Guitar Hero Metallica, the upcoming 4 player co-op Rhythm and Band game from Activision.
After fiddling with some options, the two players decided on Master of Puppets and what's followed can only be described as carpal tunnel inducing. Yes, Guitar Hero Metallica is not going to be for the weak, your wrists will ache and your face will melt.
I'm not sure I have the stamina to sustain this kind of playing for an entire game, let alone two songs in a row. Check out the video to see what I mean.