Heavenly Sword - When you've almost removed one color from his life bar, he will start rearing up with a red attack and plunging his blades in to the ground. He gets stuck when he does this. Quickly run around behind him and then follow the button sequence as it is shown on the screen.

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When you've almost removed one color from his life bar, he will start rearing up with a red attack and plunging his blades in to the ground.  He gets stuck when he does this.  Quickly run around behind him and then follow the button sequence as it is shown on the screen.