This was a fun one, I didn't think I would be able to beat it but I kept trying and ultimately won, that was satisfying.
Sorry to hear about the audio issues. Fortunately the drawings are animated so well that you can almost hear the sound effects in your head when you play. The art is really unique and appealing.
The hardest part of the game for me was switching between dodge mode and shoot mode, but you get used to it the more you play. One thought I had while playing was "what if I could shoot these ice cream clusterbombs with the mouse in dodge-mode, that way I'd be more warmed up when I enter shoot mode." Overall, great game and a great take on undertale-style combat.