Hey Mig
First of all, I wanted to say that you have created a fantastic game. Every single inch of the game has more heart and soul put into it than most of the recent Castlevania games.
I played through the entire game and I really love what you have done. There were many things I loved, and some I didn't love...
Pros:
*Content: For a fan game, this has more content than most full releases do. The numerous levels and the difficulty of the game make the game seem almost staggering in size. The many upgrades and powers you could obtain made Efrain feel powerful, but also balanced.
*Art: The game is beautiful, without a doubt. Every area is fun and well designed. My favorites were the Hunting Lodge, the Dungeon, and Epilogue B.
*Music: The game has great remixes. Many songs fit and there where none that I felt were irritating to listen to or unfitting.
*Gameplay: The game plays fantastically. Platforming is fun (save for a few areas) and the enemy variety is incredible. I think it actually has more enemies than Super Castlevania did.
*Difficulty: Although it spiked sharply at points, the difficulty was fun and fair. The fakeouts and traps in the game were fantastic.
*Story: Great story. I like that it wasn't Dracula for once that was the final boss, and the setting in Austria was awesome as well.
Now unfortunately... (I'm long winded, its actually just examples of such issues here).
Cons:
*Technical Problems: Like any game, there are some problems here. For instance, in the science lab, I died frequently on the falling bookcases. Every time I tried to jump to one, I would miss the small jump box and fall to my death. Eventually, I had to just jump on the first three, then air dash to the fifth one mid fall so I had enough time to jump off. Additionally, on the same level, the chess miniboss was a bit finicky. At times, the Bishop (which flies diagonally) would get stuck at the top of the ceiling and would not come back down. If I had an axe this was no problem, but it would sometimes force me to suicide to try the area again.
*Hit-boxes: This is an extremely minor complaint. Some hit-boxes were too large for the areas they were intended. The golem boss's giant spike balls were difficult to dodge because the safe spot was so difficult to jump through on the first one. The final level also had some areas that I could never get past without hitting a ceiling spike or floor spike. I don't know if this is simply because I suck at dodging or because of a hit-box issue.
*platform visibility: Some platforms (in a few levels) were a bit difficult to make out. I actually died on the first level because I thought I had to jump down a pit. It wasn't until AFTER I died that I noticed the platforms blended into the gate and foliage a few feet from the ledge.
Other than the issues I listed (which are more long winded than extensive) I loved this game. I really can't complain about the issues too much (Despite my comments) because the game is entirely free.
You really created a masterpiece here, and I hope one day Konami will make something half as good as this again one day.
9.7/10. You deserve a freaking medal for this masterpiece.