I looked through Bloody Palace videos and you finally get to see how Nero's Buster looks like on enemies he doesn't encounter in his story modes, such as Cavaliere Angelo and King Cerberus.
Predictably, Cavaliere has that "beatdown" animation used for when Goliath is stunned inside the church, when used against Urizen on his throne and on Gilgamesh's weak point.
But King Cerberus has an animation similar to the Empusa Queen.
I may have overshot it but Nidhogg does not seem to appear in Bloody Palace at all?
I thought I could finally see what kind of Buster Nero uses against him, even if it's that same "beatdown" animation.
Also, does Vergil only has that kneeling stunned pose when fighting against Nero or does he also do that if you play Bloody Palace as other characters?