This is the game like baseball.
What you have to do is to judge whether you should hit the ball back or overlook it.
If the ball comes to the strike zone, you should tap the "HIT" button.
On the other hand, if the ball trains off the strike course, then you should overlook the ball.
suppose you are going to be hit by the pitch, then you should tap "DOD" button to dodge the ball.
If you hit the ball or overlook it successfully, you can damage the enemy.
But if you are got a strike or hit by a pitch, then you come to get damage.
Try to keep your life more than 0 and beat 3 enemies.
Note that you should not try to hit a fire ball back.