I didn't notice til like last week. I just assumed he didn't have a crit spot. Probably because when I fight him I'm always on the platforms in the mid because his laser is easy to dodge if you just crouch and back up he can't hit you but you can still hit him. When I found his crit spot, I was meaning to just shoot him in the balls and all of a sudden yellow numbers start popping up, I about died of laughter in my chair thinking his balls were his weakness, then I saw the thing on his stomach and I was let down.