Orochi

Orochi is a character that was introduced in the Samurai Warriors and Dynasty Warriors cross-over game Warriors Orochi as the main antagonist, having caused the worlds to collide. He is based upon the snake demon yamato Orochi from japanese mythology and is a playable character once all other chracters are unlocked.

Unleashed from an interdinetional prison by Da Ji, he uses his unearthly powers to create a patchwork world from the Sengoku (Warring States) Era of Japan and the Three Kingdoms era of China, placing this new world in a void space between dimensions. He sought to test his might against the heros of these eras, and among them find a worthy challenger. He immediatly sets his demonic armies upon the leaders and heros from these worlds, quickly killing, imprisoning, or subjugating many powerful warriors.

He seems bored with actual adminstrating, leaving that up to his loyal stratigist Da Ji. Of those who he has press-ganged into his service, he seems to respect Lu Bu the most, while Lu Bu is biding his time until he is powerful enough to slay Orochi and claim the title of the strongest for himself.

In Warriors Orochi 2 Orochi is revived and has a new look accompanied by a more powerful version of his original weapon from Warriors Orochi, (see Orochi X).

In Warriors Orochi 2's Orochi mode (a prequel to the events of the first game) his storyline is expanded upon more.

From what can be told by putting various pieces of the stories and character's conversations together, Orochi was imprisoned by the mystics for various crimes to humanity (presumably from his time as a snake demon.)

Da Ji, interested in the chaos he could bring, frees him from his imprisonment and using his power Orochi forms a world to test his strength by pulling warriors from the Three Kingdoms Era of China and the Warring States Period of Japan.

He has a powerful desire to battle someone who can end his life however, as hinted by various lines he speaks, Wei's ending in Warriors Orochi 2 and the Showdown at Yamatai Dream Mode level containing Lu Bu Keiji Maeda and Tadakatsu Honda. It's possible that he seeks peace in death.