This is so late but thank you so much for playing and making a playthrough video of it! I'm so happy you enjoyed it and gave it five stars even despite all the audio issues.
After some debugging, I managed to figure out why some of the sounds couldn't be adjusted at all (it was an issue with registering new sound channels/mixers!), I've fixed that as well as did a pass through most of the sound effects to reduce and balance their volume. I'll be pushing an update in a few hours for both PC and web!
Thank you SO MUCH for playing again! It's an amazing experience seeing people not only play my games and enjoy them but ALSO go through the efforts to showcase them with videos.