Fortinbras

"There is one way I will let you live. Bow before me, the all powerful God of Light, and call my name."

- Fortinbras "Why fight the inevitable?"

- Fortinbras

Fortinbras is the true main antagonist in the videogame series Onimusha. He is the king of the Genma demons in Japan, and is also referred to as the God of Light. He has 2 main forms: his demon form, a huge snake-like monster with wings and 3 red eyes. And his human form, a sophisticated blond haired man in a white suit.

Origin
According to texts within the game, Fortinbras is said to be the supreme being who created the demon race to rule the world. He also created the human race to act as food and slaves for the demons. After hundreds of years as slaves, the humans asked a group of primordial ogres called "The Oni" to help free them from Fortinbras and his demons. After a thousand year war, the Oni and the humans were partially successful. They worked out a treaty with the demons: If the demons would free them, the humans would routinely sacrifice human beings to the demons for food. However, after some time, the humans refused to sacrifice anymore, and a new war had started.

Onimusha Warlords
In the first game, Fortinbras' minions resurrect a recently killed warlord named Nobunaga Oda, who promises in return to conquer the world and serve as Fortinbras' slave. In his battle with the Saito clan, however, he encounters much difficulty. The demons then kidnap the princess of the Saito clan in order to have Nobunaga drink her blood in a demonic ceremony. It would ensure that Nobunaga would be victorious over the Saito clan. They also kidnap the princess's little brother, in order to kill him in front of her to make her sorrow peak, and make her blood more powerful. The protagonist, a samurai named Samonosuke, and his ninja partner Kaede, save The princess and her brother by killing Fortinbras.

Onimusha: Dawn of Dreams
Fortinbras does not appear until the fourth game in the series (although he is mentioned in texts in the other games). Fortinbras is resurrected as his demon form. After he is defeated, he comes back in his human form, appearing as a male European aristocrat. He is defeated in the end of the game.

Trivia

 * Several of the enemies' names (Guildenstern, Rosencrantz, Reynaldo, Osric, Marcellus, Hecuba, and Fortinbras) come from William Shakespeare's Hamlet. Another historical figures mentioned in the games are Alexander the Great, Genghis Khan and Saitō Yoshitatsu.
 * He is similar to the concept of God as The Devil as he is both the supreme being of the universe and the king of demons.