Super Mario All-Stars Music - SMB1 Underground (Beta Mix)

"Super Mario All-Stars Music - SMB1 Underground (Beta Mix)" is a high quality rip of the beta mix of the Super Mario Bros. track "Underground" from Super Mario All-Stars.

Joke
At 0:04, the melody changes to "Spiralis Silere" from .

Trivia

 * The playlist link in the description originally didn't have its usual label.