best for me was to smash shoot button and never cease fire. Constantly made this boss to get its stunned animation and putting down the solar panels with some lost shoots, but without even lossing visual contact and never stop moving around it... Bitch made to active 2 or 3 pannels but with some entire loops around the room and shooting all time I dit it at the end. Game Cube is harder than the trilogy, slower controls and more active bosses...