You sit there and wait for him. He yells: Are you Megaman X? You answer: Of course! He pulls out an F-Buster and begins blasting at you. You get pounded. You start charging and fire a nice one into his field. He exclaims: You can never defeat me, X! He fires a few more crystal shots from the F-Buster and nails you straight. Luckily, your armor is top-of-the-line. He doesn't really hurt you. You switch on your rapid-fire and continuosly shoot at his head. You blasted a big black mark straight into his forehead. Angered, He jumps off of Treble, only falling to his death. X yells: NNNNNNNOOOOOOOOOOOOOOOOO! The mysterious black guy looks up and says: It's not over yet! Treble comes behind him and smashes right into him. Spectacular rays of purple and white shoot up past you, from them! After they stop, the whole area turns temporarily white! As the world begins to color itself again, A newer mysterious black guy is standing. In a godly voice he laughs: HaHaHaHaHaaaaaaa...I am MegaBass! All tremble before me!!! He fires what looks like a charged blast at you. What should you do?

Block it and expect it to be weak like all the other ones.
Dodge it and fire a charged-blast back at him!