Hello! I played your game and included in my video about new Itch.io games!
I liked the concept. I feel with a few tweaks it could be really great. I had trouble managing the QTE (shot-gunners) but I also loved the concept of different music and environmental aspect based on difficulty (vs the game just being harder). I also maybe made a reference to a comment you deleted, but honestly only because it was kind of funny. Cheers!