Did B (first, light route) and then A(second, dark route).

While doing B, it seemed really easy. You could just cheese through anything if you wanted to. Just keep pressing the shoot button and swinging that sword with MAYBE occasional dashes. Only at the last few levels did it start to feel somewhat difficult. BUT
Route A was a nice twist with the depleting vampire health bar. It was a nice evaluation on the gameplay, as now you were encouraged to actively engage the enemy. But also the difficulty ramped up for the projectiles to become more of a shield if anything and dashing was key at that point.

Really nice job! :D

Yeah, looks like one
though don't get me wrong. This is very nicely drawn but I do feel a creepy dream-like energy from it.