Yamata no Orochi (ヤマタノオロチ) is the Eight Headed and Eight Tailed Snake from the Japanese Legends.
Yamata no Orochi legends are originally recorded in two ancient texts about Japanese mythology and history. The ca. 680 CE Kojiki transcribes this dragon name as 八岐遠呂智 and ca. 720 CE Nihongi writes it as 八岐大蛇. In both versions of the Orochi myth, Susanoo or Susa-no-Ō is expelled from Heaven for tricking his sister Amaterasu the sun-goddess. Again he asked: What is the cause of your crying?" [The old man answered] saying: "I had originally eight young girls as daughters. But the eight-forked serpent of Koshi has come every year and devoured [one], and it is now its time to come, wherefore we weep." Then he asked him: "What is its form like?" [The old man] answered, saying: "Its eyes are like akahagachi, it has one body with eight heads and eight tails. Moreover on its body grows moss, and also chamaecyparis and cryptomerias. Its length extends over eight valleys and eight hills, and if one look at its belly, it is all constantly bloody and inflamed." (What is called here akakagachi is the modern hohodzuki [winter-cherry]) Then His-Swift-Impetuous-Male-Augustness said to the old man: "If this be thy daughter, wilt thou offer her to me?" He replied, saying: "With reverence, but I know not thine august name." Then he replied, saying: "I am elder brother to the Heaven-Shining-Great-August-Deity. So I have now descended from Heaven." Then the Deities Foot-Stroker-Elder and Hand-Stroking-Elder said: "If that be so, with reverence will we offer [her to thee]." So His-Swift-Impetuous-Male-Augustness, at once taking and changing the young girl into a multitudinous and close-toothed comb which he stuck into his august hair-bunch, said to the Deities Foot-Stroking-Elder and Hand-Stroking-Elder: "Do you distill some eight-fold refined liquor. Also make a fence round about, in that fence make eight gates, at each gate tie [together] eight platforms, on each platform put a liquor-vat, and into each vat pour the eight-fold refined liquor, and wait. So as they waited after having thus prepared everything in accordance with his bidding, the eight-forked serpent came truly as [the old man] had said, and immediately dipped a head into each vat, and drank the liquor. Thereupon it was intoxicated with drinking, and all [the heads] lay down and slept. Then His-Swift-Impetuous-Male-Augustness drew the ten-grasp sabre, that was augustly girded on him, and cut the serpent in pieces, so that the River Hi flowed on changed into a river of blood. So when he cut the middle tail, the edge of his august sword broke. Then, thinking it strange, he thrust into and split [the flesh] with the point of his august sword and looked, and there was a great sword [within]. So he took this great sword, and, thinking it a strange thing, he respectfully informed the Heaven-Shining-Great-August-Deity. This is the Herb-Quelling Great Sword. (tr. Chamberlain 1919:71-3) After expulsion from Heaven, Susanoo encounters two "Earthly Deities" (國神) near the head of the Hi River (簸川) in Izumo Province. They are weeping because they were forced to give the Orochi one of their daughters every year for seven years, and now they must sacrifice their eighth, Kushi-inada-hime (櫛名田比売 "comb/wondrous rice-field princess", who Susanoo transforms into a kushi 櫛 "comb" for safekeeping). The Kojiki tells the following version.
Orochi is a eight headed demonic serpent of massive size. The Body was a Gundanium Alloy Car-Human structure with two wheels, It has red eyes and Eight of it's Tails were bushier, sprout eight necks the size of tree trunks, and on the end of each neck is a head, wearing a samurai helmet with thick armor plating and armed with a gaping mouth covered in vicious teeth, and on the outside is lined with barbs pointing outward. Each head of Orochi has an element, clockwise: fire, earth, poison, light, lightning, water, wind darkness. The samurai helmet of each head bears the emblem of its element and the element's kanji: fire has the emblem of a raging flame; earth has a large mountain emblem on its helmet; poison has a purple skull and crossbone; light has a circle, with shining rays projecting from it; lightning has a lightning bolt, with the kanji on the middle of the bolt; water has the emblem of a water drop; wind's has the symbol of a whirlwind, which is a circle and two spirals sprouting from it; and darkness has its emblem of a crescent moon in complete black.
Each head has an elemental power: earth, wind, fire, water, thunder, poison, light and darkness.
Long ago before the founding of the hidden villages, during an era of endless wars between mankind, the Orochi existed as an Egg that was revered as a entity. God ended the wars plaguing the lands. During a festival in the nearby village Izumo, the egg hatched and assumed a monstrous form of what many christened as the "Ten-Tails". In order to satiate the Orochi's hunger the villagers decide to sacrifice one of their maidens to the Orochi. Ironically, the sacrifice ends up being Kushinada. Susanoo came down and turned Kushinada into a Comb. Upon entering the Orochi's Lair, Susanoo feed the Orochi with the Root Beer ((Sake in the Japanese version)), gradually weakening it. Susanoo sealed the beast within his descendant, Yuki.