Just downloaded the game and copied it to my Everdrive, but I only hear "static" in the main menu and random beeping during gameplay (just the start of the game). I also opened the game with Visual Boy Advance and I'm receiving the same issues. Is this normal?

Except of few instances, game does not have a music or soundtrack. What you can hear are sound effects and birds in the forest, fire cracking indoor, water droplets in caves or wind in mountains.