Ironically, I got in trouble when I was a kid ordering this song multiple times when we had the Jukebox Network in Chicago. I think it was $2.99 a song even back in 1991!
Buy the single off eBay or Discogs. Literally $2 or $3 for vinyl or cd. It has a few different versions. I just got the Inner Circle Crucial Reggae cd, they're way deeper than a theme song.