8 Fixed incorrect information on Mangekyo powers, added more in depth answer, more general sharingan info
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Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi had access to Amaterasu and Tsukuyomi
  • Sasuke are brothers, so their techniques are similarused Amaterasu and Kagutsuchi, Tsukuyomiwhich allowed him to shape and control his Amaterasu.
  • Obito'sObito has a different techniqueKamui. Obito also uses "throw-away" Sharingan eyes for Izanagi.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's ,Izuna's, and Indra's eye techniques were not yet revealed.
  • Kakashi has Kamui as well, since it's technically Obito's eye.
  • Danzo can use Shisui's Kotoamatsukami, since he has his eye. It's unknown if he can also any other Mangekyo Sharingan abilities with it (like Amaterasu or Tsukuyomi).

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regardless of what they are. That's the reason Kakashi (And Obito) for instance cannot ever achieve a Susano'o individually, but could when

At least not without the assistance of Obito's wirelessspirit possessed Kakashi and gave him both Mangekyo Sharingan download.

  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.

Which technique you gain isn't "predetermined". You cannot discern it before you gain the Mangekyo and it seems to be random, however it may be linked to an individual's personality and skill set - Itachi was incredibly skilled with Genjutsu, and gained the Tsukuyomi. Sasuke was shown to be very skilled with Fire Release jutsu and for much of the anime had a burning hatred inside of him, which may be why he gained incredible control over his Amaterasu. This is pure speculation however.

Many people have been speculating that Madara had to have the Tsukuyomi due to his use of Genjutsu on Oonoki, however all Sharingan users, whether or not they have the Mangekyo, can cast Genjutsu simply via eye-contact. The strength of this varies with the strength of the user, but with how powerful Madara is, his Genjutsu: Sharingan approaching Tsukuyomi levels of strength would not be unreasonable.

Additionally, Izanagi and Izanami are both jutsu that can be used by simple Sharingan users, without need of a Mangekyo or Senju DNA.

Ref: http://naruto.wikia.com/wiki/Sharingan , http://naruto.wikia.com/wiki/Mangeky%C5%8D_Sharingan

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi and Sasuke are brothers, so their techniques are similar, Tsukuyomi and Amaterasu.
  • Obito's has a different technique.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's eye techniques were not yet revealed.

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regardless of what they are. That's the reason Kakashi for instance cannot ever achieve a Susano'o

At least not without the assistance of Obito's wireless Sharingan download.

  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi had access to Amaterasu and Tsukuyomi
  • Sasuke used Amaterasu and Kagutsuchi, which allowed him to shape and control his Amaterasu
  • Obito has Kamui. Obito also uses "throw-away" Sharingan eyes for Izanagi.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's ,Izuna's, and Indra's eye techniques were not revealed.
  • Kakashi has Kamui as well, since it's technically Obito's eye.
  • Danzo can use Shisui's Kotoamatsukami, since he has his eye. It's unknown if he can also any other Mangekyo Sharingan abilities with it (like Amaterasu or Tsukuyomi).

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regardless of what they are. That's the reason Kakashi (And Obito) for instance cannot ever achieve a Susano'o individually, but could when

Obito's spirit possessed Kakashi and gave him both Mangekyo Sharingan

Which technique you gain isn't "predetermined". You cannot discern it before you gain the Mangekyo and it seems to be random, however it may be linked to an individual's personality and skill set - Itachi was incredibly skilled with Genjutsu, and gained the Tsukuyomi. Sasuke was shown to be very skilled with Fire Release jutsu and for much of the anime had a burning hatred inside of him, which may be why he gained incredible control over his Amaterasu. This is pure speculation however.

Many people have been speculating that Madara had to have the Tsukuyomi due to his use of Genjutsu on Oonoki, however all Sharingan users, whether or not they have the Mangekyo, can cast Genjutsu simply via eye-contact. The strength of this varies with the strength of the user, but with how powerful Madara is, his Genjutsu: Sharingan approaching Tsukuyomi levels of strength would not be unreasonable.

Additionally, Izanagi and Izanami are both jutsu that can be used by simple Sharingan users, without need of a Mangekyo or Senju DNA.

Ref: http://naruto.wikia.com/wiki/Sharingan , http://naruto.wikia.com/wiki/Mangeky%C5%8D_Sharingan

7 spell fix
source | link

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi and Sasuke are brothers, so their techniques are similar, Tsukuyomi and Amaterasu.
  • Obito's has a different technique.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's eye techniques were not yet revealed.

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regadlessregardless of what they are. That's the reason Kakashi for instance cannot ever achieve a Susano'o

At least not without the assistance of Obito's wireless Sharingan download.

  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi and Sasuke are brothers, so their techniques are similar, Tsukuyomi and Amaterasu.
  • Obito's has a different technique.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's eye techniques were not yet revealed.

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regadless of what they are. That's the reason Kakashi for instance cannot ever achieve a Susano'o

At least not without the assistance of Obito's wireless Sharingan download.

  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi and Sasuke are brothers, so their techniques are similar, Tsukuyomi and Amaterasu.
  • Obito's has a different technique.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's eye techniques were not yet revealed.

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regardless of what they are. That's the reason Kakashi for instance cannot ever achieve a Susano'o

At least not without the assistance of Obito's wireless Sharingan download.

  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.
6 added 84 characters in body
source | link

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi and Sasuke are brothers, so their techniques are similar, Tsukuyomi and Amaterasu.
  • Obito's has a different technique.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's eye techniques were not yet revealed.

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regadless of what they are. That's the reason Kakashi for instance cannot ever achieve a Susano'o. 

At least not without the assistance of Obito's wireless Sharingan download.

  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi and Sasuke are brothers, so their techniques are similar, Tsukuyomi and Amaterasu.
  • Obito's has a different technique.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's eye techniques were not yet revealed.

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regadless of what they are. That's the reason Kakashi for instance cannot ever achieve a Susano'o.
  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.

Each Mangekyo is given a different eye pattern, and a different ability. Mangekyo literally translates to kaleidoscope, where each time you look you see a different, symmetric shape.

  • Itachi and Sasuke are brothers, so their techniques are similar, Tsukuyomi and Amaterasu.
  • Obito's has a different technique.
  • Shisui has a different one, the Kotoamatsukami.
  • Madara's eye techniques were not yet revealed.

Also

  • Susano'o is achieved once you control both of the techniques in your eyes, regadless of what they are. That's the reason Kakashi for instance cannot ever achieve a Susano'o 

At least not without the assistance of Obito's wireless Sharingan download.

  • Izanagi doesn't require a Mangekyo (As neither Danzo nor Tobi had one when they used it). It instead requires one to have the Sharingan, plus Senju genes or cells, it also sacrifices the entire eye.
5 Correct typo in technique names
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4 added 10 characters in body
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3 added 54 characters in body
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2 added 154 characters in body
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