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I want a castlevania where dracula's final form is so giant and awsome that a Belmont has to jump in a spaceship (vicviper?) and chase after him into space.

Thats at the beginning.

they land on the moon and the hero fights through a castle Dracula had built there. When he gets to the top he beats a monster and gains a magical fire suit (like human torch type stuff), and that lets him touch the magic orb that tuns the moon upside down so the castle is on the cold side.

So like instead of everything being normal, the castle is upside down... and frozen in ice.

Also, all the medusa heads have space helmets on and when you hit them the glass shatters and the head explodes sending deadly snakes in all directions.

falling down pits makes you die again too