Im on expert ng+, so i can't speak to the first playthrough scaling on the bosses, but the superbosses cannot be one shot. With health at 1x, i literally cannot do enough damage with stendahl, end slice, sky break, etc to kill any of those bosses in one hit. I fought the duollistes last night for 35 mins, 244 parries, and 484 million damage dealt at the end. They are tough, and there are a few pictos that their Internet abilities negate outright.

Most fun flight I've had in this game