The Koopa Troopa, based on the kappa, a mythical creature, was conceived in Mario Bros. as an enemy that could only be defeated by hitting the floor underneath it (to stun it) and then going up onto its platform to deal the final blow. via Wikipedia.

Well what a great way to kick off the 2010 Crazy Guitar Designs category! The creator explains that, “The guitar is right handed. I play it so the Koopa is on its back (it’s been stomped). When it is on a guitar stand it’s walking about. Just pretend Mario jumped on the Koopa Troopa and chose to hold it for too long so it’s escaping.”

Hey Koopa Troopa guitar meet the NES Paul.

via Geekologie