Thank you very much! I'll definitely make use of the tips in the future
About the ball taking damage, I needed a way to make the player lose and it was either a timer or the hp. Taking damage only by the enemy's attacks was not enough for losing and there isn't really a proper way to dodge them anyway, i chose to deal damage to the player when it hits enemies and other occasion to add a sort of timer to the gameplay. It's something that definitely need more thinking and more testing to find a good way of handling that
Thank you for trying the game!