Difficulty is out of whack
There seem to be some small glitches when performing attacks off the sides of ledges, and given that the second boss interrupts all attacks and ignores the "unignorable" slash attack, even on easy, there could be some changes.
The music clips off at the end when it repeats so it does get irritating.
Walking so close to the edge of the screen to get it to move forward means a lot of surprise attacks from foes approaching; even though your character is looking right at them, you can only see a pace or two ahead. Swords to the face.