Hey!
I don't think the volume slider was working, and there was a bit of hitching with the sounds. They sounded a bit distorted when multiple sounds were playing at the same time.
It wasn't present all the time, and I think it was when multiple audio files were being overlapped with one another. It's hard to describe, but it's as if they were chopping in/out with tiny gaps with no audio at all. Only lasted a split second, but it was noticeable!
Didn't stop me having fun, great job!