Loving the Castlevania vibes! If you were to keep working on this game I'd think about making it full metroidvania with ability gates etc.. Just a thought. :) I thought the look and atmosphere of the game were fantastic. Enemy variety is really cool. Only constructive criticism I can give on that (and could be a matter of opinion):
-Maybe gameplay generally (player movement essentially) could be slightly faster? Felt slightly sluggish to me.
-The jump mechanic I'd have preferred to be more responsive (instead of just triggering a jump, maybe only jumping while holding down jump to be able to have more control over the jump).
-The fireball mechanic could be explained more clearly, you can use a lot of maga trying to work it out.
-Maga should recharge faster, with more ways of recharging it, as now there's a lot of waiting.
Like I say, just my opinion, someone else may disagree with me!
There were a couple of bugs, to be expected in a game jam, but the notable ones for me were 1) I became invincible after the 2nd restart. 2) On about level 5 or 6, I tried the wall jump to clamp to the wall, and the game bugged out and had to force close it. Like I say, to be expected for a game jam, certainly with such a large game made in just a month.
Generally a really impressive entry, good job! :)