Parrying is an issue
Everything is fine except that the parrying programming is out of control. It prevents players from achieving any high-number aerial combos as well as stops them from midair retaliation. Pumping the blocking key seems to be the only semi-viable solution.
And Samurai Asshole really lives up to his name. He really is an asshole, in every fucking mission that you fight him. Maybe tone down his AI's insane aerial combo-rape.