Minion is a very tough half-way boss. His attacks on you that he blows are unflawless, and he can very easily take you out in a few hits. The way the game says to kill him is by shooting his front and back panels, which eventually destroy the force shield, but it takes good aiming and a lot of work. I found the easy way to defeat Minion. When you start at the very beginning of this "Level" he is far away from you and he begins charging very fast. You should be already equipped with some weapons, including your special. Turn, and look straight at him as if you are going to collide head on, aim, and shoot your special, and if it hits the very front if him, Minion will be bown to pieces in one shot.