Hey, just played your game and really liked the smart concept! Turning the ring adds an extra challenge and if you are good enough, it creates a cool gameplay loop. It is a little bit rough though to get the right angle as there is no indicator in which direction the bullet is going to fly or when the player avatar changes its direction. That way the game is over for me as soon as asteroids come in at a faster frequency and I am too slow to precisely get the right angle.
But when the controls work, its fun!