OK, thanks everybody and at first I have no idea what the track is, because I haven't played Belmont's Revenge...
The game is awesome to have its original voice acting samples for the main hero and boss monsters, cool graphic details and effects, the main hero has good mobility and relics for special arts, his movement and whip functions are simple and easy to use for newcomers, but the game has hardcore difficulty when you are in the castle stages, and in some wide room areas (like final castle section 1 room 2, the stage of the last battle with Grim Reaper) the camera will stuck in one place or struggle in between two areas sometimes or just VERY slow and can't follow player's movement, at first I think that it could be a design flaw but Bone Granfalloon and Puppet Master boss fights don't suffer similar problems and now I'm wondering what the reason is.