I would guess that you are at the beginning of your game dev journey, so I want to say good work on what you have put together here. The ball attacks work nicely and the 'ricochet' mechanic where the ball bounces between enemies is nice. Also, if you made the player asset yourself, nice work, he looks good!
In my playthrough, the enemies didn't apply any damage to me, so it was impossible to lose. And even if they could damage me, the difficulty was very easy.
So my suggestion for next time would be:
- allow the player to actually lose somehow
- add some audio or visual feedback when the ball hits an enemy to make it more satisfying for the player