Jelly Fields - SpongeBob SquarePants SuperSponge (GBA) HQ Extended

Ahh yes, the first level I ever played in a game. Recently remade it in Mario Maker 2: GV7-Q0K-XYF
The only soundtrack uploads for this game are bad quality due to the GBA's compression. This upload is a direct rip, meaning the vibrato actually sounds like it should, and not the hellspawn it sounds like on the GBA hardware.