Some folks say less is more, but we'll bet they never saw Guitar Hero being played by kicking footballs against a giant wall. This epic undertaking will give your plastic axe a major inadequacy complex with its huge wall-mounted piezo vibration sensors and absurdly large fretboard projection. An Arduino acts as the conduit between the contact sensors and a PC running the freeware Frets on Fire. The outcome from such a relatively simple setup is pretty astounding, and you can check it out in the videos past the break, including some behind the scenes footage.