Underwater Theme

This is a song that plays during Mario's adventures underwater throughout Worlds 2-2 and 7-2 of Super Mario Bros (1985). It's a slow, upbeat chiptune melody.

SMS Spaceworld Version
A somewhat obscure (and beach-themed) remix was used for the Spaceworld trailer and demo of Super Mario Sunshine. It only references the original melody in the second half of the song.

Links
https://www.youtube.com/watch?v=1VDovVZbWls (SMS Spaceworld Version)

https://www.youtube.com/watch?v=7gKfQkAXzO8 (Original)