Being "underrated" means "you're not getting enough votes for what this is"
That means "you need more respect".
You are VERY underrated. =D
Make some more plz! Maybe you have got a forum account!
then to close it only press the X button.
it opens the side of the turret and lets the fotons free.
then select the way you want to consentrate the burst by pressing the arrow buttons.
you press the green button then wait. the press the red button.