Diffidently has potential.
The graphics are good, but the music just does not really fit. I'm getting the Halloween movie vibe from it, not Castlevania, or Bloodborn - which would fit it more. The overworld gameplay needs to be removed. It does not fit. It slows the game down. Chest should automatically be opened, and items collected - there is nor reason for using a button for that unless you put in a weight limit, or it replaces an item you have.
The controls are, particular the jump, a bit strange. I'm not sure how I do it, or if it's a bug, but I can jump a whole screen, which is a bit excessive. Maybe a double jump? the bosses need to be sped up. Overall, the controls aren't too bad.... they just need to to be further refined.