Mangekyō Sharingan

The Mangekyō Sharingan (万華鏡写輪眼; Literally meaning "Kaleidoscope Copy Wheel Eye") is an advanced form of the Sharingan that has only been activated by a handful of Uchiha.

Overview
The Mangekyō Sharingan has the ability to control the Nine-Tailed Demon Fox, although Madara Uchiha and Tobi are the only ones to accomplish this milestone. It also grants them access to other powerful techniques. The Mangekyō Sharingan is distinguished from a normal Sharingan by its appearance, which changes the form of the tomoe seal. Unlike the Sharingan, the appearance of the Mangekyō Sharingan differs from user to user; for example, Itachi Uchiha and Kakashi Hatake's resembles a pinwheel, and Sasuke Uchiha's looks like three intersecting ellipses.

The Mangekyō Sharingan is acquired through the death of the person closest to the Sharingan user. To expedite this occurrence, Uchiha throughout history have killed the person closest to them in order to meet this criteria, though how Kakashi and Shisui gained their respective Mangekyō Sharingan has yet to be explained. To obtain the Mangekyō Sharingan, one must feel the emotion of losing a friend or family, as merely killing them or watching them die will not activate it.

Echo Uchiha
Echo's Mangekyō Sharingan takes the form of a ; six tomoe arranged around the pupil. Unseen in any other Mangekyō Sharingan, Echo's takes on a green coloration. Ryun Uchiha mentions that Echo can use both Amaterasu and Susanoo, with his Mangekyō, meaning he can also use Tsukuyomi. How he obtained the eyes are yet unknown.

Ryun Uchiha
Ryun awakened his after witnessing his brother's sacrifice at the hands of, as a peace offering to. Ryun's Mangekyō takes on the appearance of a three-pronged windmill.

Curiously, the first technique that awakened in Ryun's Mangekyō Sharingan was, which he displayed moments after he obtained the eyes; in a fit of rage over the loss of his brother. While was a master of Sharingan genjutsu, namely, Sasuke was a master of , and  and  were masters of their Mangekyō's space-time properties, Ryun has proved himself to be a master of Susanoo to a degree far beyond any other Sharingan user. Other than its ability to partially manifest to fit the situation, Ryun's Susanoo can be kept activated longer, because it drains his chakra less substantially due to his mastery of it. Ryun's incomplete version forms the spirit with skeletal muscles for attacking. He is also able to combine the technique with Amaterasu to further increase his defensive power by making it impossible to touch Susanoo without being ignited. Ryun's incomplete version has a more Pharaoh-like appearance, it has a very round head, with a box-like design around it's eyes and nose area, it also has a short spike-like protrusion coming from the bottom of it's chin, similar to a Pharaoh's mask. It wields a chakra spear in its right hand capable of easily shattering stone pillars. His incomplete version once looked similar in form to a fox, complete with ten tail-like protrusions. After being enraged by Ibitsu's story of Danzō, who had killed his brother as an apparent peace offering to another nation, Ryun's Susanoo changed into the more common, humanoid form, and later, after the formation of Tsukiakari, he is able to produce a fully manifested Susanoo, complete with flesh and armor. Susanoo may feed on it's user's emotions to become stronger. Ryun and Sasuke's versions of Susanoo was overall shown to change it's weapons accordingly.

Later on, in his battle with Kurisu Taizen, after both an onlooking Seireitou, and Kurisu had taunted him with his brother's death, his Susanoo made a change. The sword like arrow transformed into a spirit weapon, the Tonbogiri (蜻蛉切, Dragonfly cutting spear), which is an elongated spear, made of chakra, that instantly cuts in two anything that the blade touches. During the same fight, he also awakens his defensive spirit weapon, the Wanyūdō (輪入道, Wheel Monk). It is a circular shield, similar in some aspects to the Yata's Mirror, however a skull forms in it's center. The shield itself is strong enough to endure large scale physical damage, but the skull has the ability to suck in and absorb ninjutsu that comes near the shield, making it a truly powerful defense. In it's most recent appearance, it has been shown capable of gaining it's final layer of armor, making it appear like a yamabushi, and gaining the Yasakani no Magatama (八尺瓊曲玉, Benevolence Beads of Imperial Ascension) is a golden necklace worn around the Susano'o neck, and completes Susano'o power. This necklace is also seen in Seireitou's version. The powers of the necklace are yet unknown.

The second ability he displayed was. Whenever entering a battle in which his Mangekyō has to be used, Ryun will often use Amaterasu as a "starting technique". While he can use Sasuke's advanced nature, he cannot use it with as much skill, only being able to produce a "Shield of Black Flames". He has shown skill enough with Amaterasu to quench the so-called "extinguishable black flames". Amaterasu and Susanoo both seem to strain his eyes more than his other Mangekyō techniques.

The third technique he is capable of using is the Sharingan genjutsu,. Ryun's version seems to be nowhere near Itachi's level, though it surpasses Sasuke's level, in that he can use it without a foe noticing and can somewhat warp a person's perception of time itself. Of all his Mangekyō techniques, he uses Tsukuyomi the least. He only seems to use it when he is certain that genjutsu will work on a foe, and usually uses his genjutsu to test this out.

Tenjai Uchiha
Tenjai's Mangekyō Sharingan consists of a black triangle over a red background and a red hole in the center. The vertexes of the triangle touches the black rim of the iris design.

Tora Uchiha
Tora's Mangekyō Sharingan, that developed only a few days after Ryun's own Mangekyō Sharingan, took the appearance of a pinwheel, in a similar form to 's with three black dots on the edge of each side of the pinwheel, and three red dots outside the pinwheel itself. Tora's Mangekyō Sharingan is one of two, the other's being 's, with a black background and a red design, rather than the typical black design and red background.

Hajimoto Uchiha
Hajimoto's mangekyo sharingan developed after his sensei was killed right in front of him by a band of rogue ninja in the land of waves on a routine mission. It has three tomoe floating on the sides and a slightly sideways triangle with a swirl design at each end of the triangle, it has the normal red background with a black design for the tomoe and triangle.

The first techniques to awaken in his mangekyo was Tsukuyomi and seigyoki because of his affinity to genjutsu, he first used it when his sensei was killed on the three ninja responsible for his death to break their minds so they could never harm anyone else in their lives. the seigyoki is the special ability that his sharingan had but enhanced to where he can control up to four people within 10 meters of him but it drains half of his chakra and if overused death.

The second technique was amatarasu which is one of his least used techniques because of his mastery of genjutsu and the fact that he swore to only use it in case of emergencys or if he had no other options at his disposal.

The last and final technique he acquired with the mangekyo sharingan was susanoo, he only learned this technique on accident and hasen't fully mastered it yet but he can summon the rib cage and and one arm to protect himself in case of a surprise attack or extra protection from high level ninjutsu. unlike most susanoo which are usually red or purple Hajimoto's susanoo is a dark blue color as of yet it's weapons and full appearance are unknown to hajimoto.

Tatsu Uchiha
Tatsu Uchiha was the Third Uchiha to awaken the Mangekyō Sharingan with out killing his Best-friend. How he developed this is still unclear. With his Mangekyō Sharingan, Tatsu can use a space–time ninjutsu called Mizuchi which allows him to generate massive vibrations, or shock waves, which can travel though virtually any medium, including the ground, the seafloor, or even in the air. if He spends a lot of time and trains one's chakra over and over again, this technique can be invoked. The target is enveloped with a barrier space and the user concentrates their mind to what they gaze at. The target can struggle helplessly, but against this technique no defence is possible. It is a dreadful technique that, with skilled use and enough chakra, can easily devastate an Entire Village with ease.

Tatsu became one of the few to awaken Susanoo, as a result of awakening Amaterasu and Tsukuyomi in both eyes. He also gained the ability to create and control darkness and its unique property of gravity, a feat which no other Uchiha can Do with out the aid of the Dark Release.

Eternal Mangekyō Sharingan
Over time, use of the Mangekyō Sharingan's techniques deteriorates the user's eyesight to the point of blindness. Only by taking and transplanting the eyes of another Uchiha clan member can the vision be restored, a process that results in the creation of an Eternal Mangekyō Sharingan (永遠の万華鏡写輪眼, Eien no Mangekyō Sharingan). The tighter the blood ties are between the "donor" and the receiver, the better it is for compatibility, siblings for example. The time from fusing the donor's Mangekyō with the receiver's Mangekyō to the point of full recovery is at least several days in the case of Sasuke. Not only does this process permanently restore one's eyesight, but it also gives the person even greater power. The Eternal Mangekyō Sharingan also changes form from the original, with what appears to be a fusion of the current owner's Mangekyō with the previous owner's.