I couldn't shoot at all at first.
So I had to press down and somehow rotate my angle.
Controls feel weird in a game like this.
Then there's how I basically have one life and the first stage already having too much stuff going on.
I wrote the demo with the highest difficulty in mind. The stage part is learnable, boss is tough even for me. But you're right that it might be too hard for people who don't usually play shmups, I'll add a difficulty setting.