I'm a caster. I have limit break hot barred and can see when the bar is full, meaning I can use it. However, when I press the button no circle appears. I know when the circle is out I can move it and press the confirmation button and it will do the limit break. I don't know what that means either. Do I need to use an analog stick to make the circle appear? And when it appears, what button do I need to press to make it activate?