when the green line reaches the end of the power bar hold the right click button on the mouse. and it will keep getting bigger til you run out of ki for flying. then it usually stops growing.
p.s. i made one twice that big once when my p l was higher but i didn't get a picture.
I try it and I killed like everybody on ESF FALLS lol it was awesome I blasted them into bit of pieces and I got hit a little bit too umm I think drop to 5 hp and then they kicked my @$$ for blasting them off I think they got pisst.