The art's really good and I love the way you edited the Scratch sounds. However, I died to Hanzou and then when I respawned I was stuck with them right behind me and neither of us could do anything.
Also the Alucard fight was confusing. Sometimes I take damage from things that are nowehere near me and sometimes things hit me with no consequence. I think this is because Pico is off-centre and the objects make me take damage if they reach the centre. Moving Pico to the centre would likely fix this issue.
Edit: Looks like the Hanzou bug has been fixed. From your response, it seems like there is a communication issue. Your system makes sense when you explain it. It may be better it you place a glowing circle or something in the centre of the screen to better communicate with the player.