Well, last night I finally finished this game, and all I have to say is "Congratulations!".
You have set the bar very high for Castlevania games, just like Michmede did years ago with Dracula's Shadow.
I believe we Castlevania are the franchise with the best fan games. Let's be proud of that!
Excellent selection of music, very good remixes, nice new tunes.
Beautiful, beautiful graphics. The ripped sprites blend perfectly with the new ones, and the same goes for backgrounds. Beauty is present throughout the entire game. It captures perfectly the essence and atmosphere of Castlevania.
Very good gameplay, with a great range of movements, upgrades and power ups. Excellent stage design and AI for the enemies and bosses. Animation by sprites is very fluid and the interaction with scenery adds another nice touch. We can find everything we can imagine from Castlevania.
Nice inclusion of some RPG elements and a little exploration and backtracking, and that's always a plus for games.
The challenge is very high. The game gives you plenty of power ups, max ups, weapons and lives, and it have infinite continues. I'd say the difficulty is at par with Rebirth in hard classic mode. I would advise to include a normal mode, and let the current one be the hard mode. Maybe some fans can feel alienated by the overwhelming difficulty, and they'd be skipping a hell of a great game.
And there's some idiomatic corrections that can be made here and there, in an otherwise story that really catched me and helped create a beautiful, haunting, gothic atmosphere, worth of the name Castlevania that carries.
Other than that, it's all praise for this jewel. It's the Castlevania game I've been waiting for since I beat Rebirth back in 2009.
So, in reply to the message that prays "Thanks for your playing" at the end of the game, I just have to say: "No, thank YOU for making this game".
Now I'm looking forward to the sequel