Fun zone doesnt really have any lyrics. people occationally say "yeah" and other similar phrases, but its generally just music. in the movie, it played in the background when stanley Out in the miniature fire engine at the beginning of an episode of stanley spadowskis clubhouse. the song is approximately 1 minute and 45 seconds long, but it did not play in its entirety in Ovie.
https://primanota.net/weird-al-yankovic/fun-zone-chords.htm