I like the fighting system. In the beginning, it seemed impossible. I constantly died. But then I started to learn its patterns, and made a strategy for how to play. Towards the end, I would say it was almost easy. That's a good thing in my books, because it means it is a skill based game, where you can practice and get better. That feels good and rewarding.
However, my main complaint is that I have to fight the exact same boss over and over again. The game gets super repetitive. I understand that I get older/slower, but my strategy for winning was exactly the same all the way through. The first time was fun. The second time, I'm okay with. But the following times were just boring. That's why I chose Ending 2, because I didn't want yet another fight (and I didn't know what "resolute" means). Maybe the monster could develop its abilities over time, so it starts out very easy with a single attacking pattern, and then every time you meet it again it has developed one new attacking pattern.
The graphics and animations are well done. I really like that I can predict what the monster will do shortly based on their animations. Hitboxes felt fair.
Overall, a really well made game, with fun gameplay at its core, that unfortunately drags out too long with repetitive content.