Henya's Hikuu Happa fighting style doesn't have any fancy sword techniques or anything. Mainly his whole fighting style is based on aerobatics. Henya's fighting style if you ask me is rahter chicken but he uses dynamite to lift himself into the air where he drops his aerial arsenal of dynamite. If you notice under Henya's armor he is almost all bones and no meat! This is why he can boost himself into the air using dynamite and his wings. Henya does not have a waza though.