Part 2:
Second stage felt suddenly like 500% of first stage difficulty, so it felt like too much. I gave up on moving platforms fragment, where there are archers and skeletons on top. It felt like too much. But don't get me wrong. For sure you shouldn't make game easier, but if you targeting not only into old castlevania players, but for totally newbie players too, then just try to do something in-between, so player will be able to learn some tricks and stuff.
- Music was great. It felt dynamic, a bit stimulating, but wasn't disturbing gameplay. Made me feel like playing on old console, which is nice feeling (good thing you have made gamepad controls).
- I'm assuming that it's just castlevania mechanic, but personally, I don't like that falling mechanic (for example, when you are going in direction of stairs, but will fall if you won't press down near them).