A video showing off Guitar Hero: Metallica's co-op mode has shown up on YouTube, and features two guys trying their best to keep up with Master of Puppets.

It's posted after the break.

The first minute-and-a-half of the video's extremely slow going as the players get ready to "rock", but if you are patient enough, or inclined to fast forward a bit, you should get an general idea of what to expect.

Kind of makes your fingers ache just watching it.

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