Pretty fun bullet hell and I love the visual style! It offers a real challenge, but is that pirate ship even possible to clear at all?!? I seem to have a handle on the strats (stay in top left corner and slowly dodge when the black strings come out) but the ship's HP seems to go to negative territory and doesn't let me destroy it.
The game needs a bit more balancing and pacing. E.g. in the spiral phase, it suddenly hits you with a barrage of projectiles that are impossible to dodge, and if you survive that the next screen is suddenly less challenging. I'm also not really a fan of how the projectiles blink as its not clear whether they're about to go off the screen or not. The movement also feels slightly floaty and imprecise, and restarting from the start was slightly harsh. Otherwise, bullet hell mechanics were sound. Without any music the experience felt kind of hollow, just some sound FX would have made this pretty great.