I really like the story and the idea. It's fun to bounce saws off of walls and hit the boss, however, the bosses might have a bit too much health. Additionally, it's strange that things like arrows can deflect a saw larger than a person, against the knight that became somewhat frustrating as the knight would not only shoot at me, but shoot my own saws back at me and I had to slowly bounce saws off of walls and hope it hit him. That would in theory be a good fight mechanic, but he simply had too much health.
Criticisms aside, this is a really cool game and I can tell a lot of passion went into this, good job!
(Also if you have a free moment, I would really like it if you could give me some tips on my game, I'm planning on remastering it and possibly selling it on Steam, so any input would be greatly appreciated)