Aomizuchi

"Foolish woman... This is your reward for releasing me. I am allowing you to die at the hands of the man you love. Even though he is merely a puppet of Hellspawn, Aomizuchi!"

- Hiruko who finally summoned Aomizuchi with the sacrificed souls of Moritsune and Ageha.

Aomizuchi is one of the Four Hellspawn Lords and a minor villain in the 2002 videogame Shinobi.

Aomizuchi'S Wrath
A ninja who attacks Hotsuma early in the game. He has a wound on his neck that glows and causes pain when he gets near Akujiki. He flees upon defeat in his first encounter with Hotsuma. His true identity is eventually revealed to be Moritsune, Hotsuma’s dead brother. Aomizuchi is actually the fourth and final Hellspawn Lord, a dragon-like demon with the power over lightning, using Moritsune's body as a puppet.