Eight

You have 8 lifes to get the highest score by switching between the circles!
Touch to screen to change the balls position from inside to outside.
If you touch to screen when the ball is on the intersection point of two circles, ball will go inside of the next circle.
Do not forget you have to be inside of the circle to change the circle.
In order to avoid obstacle touch to screen and go outside of the circle then go back by touching to screen again.