Interesting concept, but...
I like the concept of the game, but it didn't reach its full potential
First of all, the screen is far too small for the avatar and the enemies that size. There is no room to move. Second, the avatar moves to slowly. It's difficult to move away from an incoming enemy and the avatar is often and easily hit/stunned.
The AI is a little too high for the first boss battle. Either that, or you have too many sub enemies (4) for a screen that size and the maximum speed of the avatar being slow. I just got frustrated, and couldn't enjoy the game anymore.
It's a good idea, it just needs improvement.