Really nice game, I like the concept of parrying for multi-use. It feels very satisfying when you get a successfull parry with the particles, flash and sound effect. The animation of sending back the fireball is really cool too.
It took me a few attemps to get the timing right, I expected that I needed to block later. I like the variety in the attacks, the triple attack is pretty hard but doable sometimes. The "escape sequence" is a nice ending. I also like the addition of a easy mode, especially for a game jam game, I beat it in Normal though :D Hard mode is really hard but it was fun to try a few times.
All in all great game, well done!