This is a video of musician Nathan Navarro using a bunch of guitar pedal effects to perform the Super Mario Bros theme AND the in-game sound effects for World 1-1 on his bass. It was surprisingly impressive. I especially liked the invincibility and sliding down the flagpole parts. I did not like the part where my boss told me to stop watching videos on my laptop because this is supposed to be a meeting. Nobody likes getting called out. Especially considering my mom was here for Bring A Parent To Work Day.

Keep going for the video.

Source: Geekologie – Guy Recreates Theme And In-Game Sound Effects For Super Mario Bros. With Bass Guitar