X has the ability to take his helmet off. With no his helmet, X has two ridges protruding in an arc in the midst of his forehead. The X-Buster also isn't going to fire a beam, as that could suggest a ongoing stream of energy. Instead it fires separated bursts https://stephenvmetj.blogzag.com/57865376/the-fact-about-mega-man-that-no-one-is-suggesting