This is an interesting concept but once you understand it i end up spending most of my runs intentionally firing as little as possible and standing as close to the center as i can to make future runs easier. dying in one hit made me not want to try the whole thing to get back to the boss again, restarting from just before the boss fight would have been nice as an option.
Otherwise really complete design, the artistic aspects are striking and i really like what youve done with the vibes here c: