I cannot recommend Furi enough. I would have never tried it, but PS+ put it on my backlog. It's a tough boss rush type game with bullet hell aspects.
It's execution and knowledge focused, tough to the point where you initially might think it's unfair the first go round. My first play through took 10ish hours, I was KOed over 400 times, and took 1200+ hits. I sucked, and there were times I lucked through a phase. My second playthrough took less than 2 hours, with 1 KO and 100 hits taken.
The great part is how varied the bosses are. Some take away aspects of your toolkit and force you to get experienced with other moves and tactics. Converting and dodging are core though.
The story is unusual with a fun payoff at the end, with a superb voice actor delivering most of the dialog. My biggest complaint was that they have you walk between sections, which should have just been cut scenes.
All in all, I'd recommend this to people who enjoy conquering tough games. If you don't like getting your butt handed to you, stay away!