The pixel art is absolutely amazing in my opinion! Personally I love this style and it reminds me of few metroidvania I've played so that's really impressive! As for the BGM, it resonates well with the given theme Vampire, so that's a bonus.
The fact that this game has finished puzzle levels and fully functioning UIs for the constrained amount of time in production is simply impressive (I love platformer puzzle games ugh). The mechanics are also executed well (at first I was wondering why I can't attack them, but later on the game allows you to do so).
But I've encountered a bug wherein if you transformed into blood and restart the level, the character would automatically transform into blood but is nowhere to be found, and I'm assuming that the blood is in the same spot as where it was left before the restart. So, by restarting the level multiple times, the player is still stuck in the blood form and cannot revert back to the character's body, i.e., the vampire form. As for the reason why I did this, it was because I mistakenly pushed a crate against the wall, and tried to push it away from it on blood mode, but it didn't worked, so I tried to restart the level instead and the aforementioned happened.
Generally, these are my thoughts to this game. Very well done! (Also made with Godot! 😳👀)