The art in the game is really nice! However, I found myself getting hit by balls that I was trying to catch quite frequently. It might be helpful to have a visual guide indicating the catch zone. I anyways liked the idea of using fireballs from the enemies / environment as your weapon. Good job!

I like the idea of the breath holding technique to fight the monsters. It is like Tai Qi, you are actually using the strength of the enemy to send it back to them. Every enemies has a different attack pattern and the difficulty increases for each level. Quite fun to play and enjoyable. It doesn't seem there is a way to recover hearths but maybe I missed something. I would suggest to localise the game also in English next time though. :)