Super Mario Bros 3 – Underwater theme – A Banjo Cover by Banjo Guy Ollie Here’s a great banjo cover of the Underwater theme from Super Mario Bros 3 by Banjo Guy Ollie! Enjoy! [BG Ollie] Sharing is Caring:FacebookTwitterEmailMorePinterestMastodon Geeks are Sexy needs YOUR help. Learn more about how YOU can support us here.