Loved the music!
The game captured well the core of the Survivors-like genre. It was fun getting stronger and stronger over time.
Like Niba said, I also clicked an upgrade by accident because I was spamming click. Maybe by being able to shoot by holding down the left button or even auto-shooting without pressing everything would be a nice quality of life upgrade. I also wish I could shoot over lava like my enemies lol.
However, I liked the hellish atmosphere of the game. Congratulations to the team!