Yea, I can somewhat agree with the chaotic audio, because there can be so many things appearing on screen, and many of those things can cause SFX. Furthermore, there is a bug where if you go back to main menu, the music duplicates, but I wasn't able to fix it before the deadline.
I can agree with this too, there were several other feedbacks earlier that they are able to play the game forever if they try hard enough :) Definitely can improve on the difficulty