Stratosphere (セレスティアル Seresutiaru?, lit. "Celestial") is a Finish Command usable only by Ventus in Kingdom Hearts Birth by Sleep and Kingdom Hearts Birth by Sleep Final Mix. It can be unlocked if one defeats 800 enemies, following Air Flair 4 in terms of unlocking. During this Finisher's execution, Ventus will perform a downward strike. Additional attacks can be added by pressing random buttons when on-screen prompts appear. When performed successfully, Ventus will fly high in the air and dive down, followed by a storm that will damage all enemies on the screen.