Overworld Theme (Beta Mix) - New Super Mario Bros.

"Overworld Theme (Beta Mix) - New Super Mario Bros." is a high quality rip of the bta mix of "Overworld Theme" from New Super Mario Bros.

Joke
The main melody is changed to the melody of the first level ("Daffy Duck") of the Looney Tunes game for the Game Boy Color. To accommodate this, the entire advertised track is heard in a lower key.

At 1:14, the melody is briefly changed to the Spanish folk song "La Cucaracha".

Trivia

 * The rip was originally named "Overworld (Beta Mix) - New Super Mario Bros.".