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A cold, distant person, Sasuke likes to win and succeed. When Sasuke was young his clan was murdered by his own older brother, Itachi. With his parents and family now gone his brother spared him and left him to survive by himself. Sasuke tried to forget about the past by applying himself in the ninja academy and fitting in with the rest of the leaf village.

After his fight with Naruto he believes he's been wasting his time 'playing ninja' with the people of the leaf village. His new goal is to get stronger so he can revenge his clan by killing Itachi and then to restore the Uchiha clan.

As a wielder of the Sharingan(the kekkei genkai of the Uchiha clan), he learns to use Chidori and has a vast knowledge of the various Fire Jutsus. The curse seal which Orichimaru gives him during the Chuunin exam, at first, enhanced his power but at the risk of killing him. Now he can use it of his own free will.

Claiming at first that he doesn't need any friends, he is forced to contradict himself when he sees that either Naruto or Sakura are in danger. Remembering this type of Sasuke is what brings motivation to Naruto and Sakura. He openly admitted to Naruto being his closest friend.

Sasuke has black hair with a blue tint that lengthens as the story goes with onyx eyes and has lighter skin than his brother Itachi. Like many other members of his clan, his hair hangs over both sides of his face to roughly his cheeks. In his curse seal form, he has grey skin with wings on his back that resemble giant webbed hands. He also has hair similar to Madara Uchiha except in a greyish-blue color.

At the beginning of Part I, Sasuke's clothing made up a blue, short-sleeved shirt with a raised collar and the Uchiha crest on the back and white shorts. An interesting thing is that during Part I the Uchiha symbol on his back gets smaller each time he changes his outfit. In the last stage of the Chunin exams, he wore a black, one pieced version of this outfit but eventually went back to his original clothes.

In Part II, Sasuke has grown noticeably taller (almost eye height with Itachi) and slightly more muscular. wears a white long sleeved shirt that's open at the torso with a smaller version of the Uchiha crest on his collar. He wears black pants with a blue cloth hanging from his half way up his stomach to his knees. He also wears a purple rope belt (Japanese name: Shimenawa) tied in a bow fashion found on many Sound ninja, only the bow is in a different style and is tied in the front instead of the back. He also will at points remove his shirt and hang it from his belt around his waist to give his wings in Curse Seal Level 2 room to move (also without transforming). Sasuke, even though claiming to be emotionless, wont kill when uneeded.

Lariat
The user charges at his opponent, striking them with a Lariat move, coated in chakra. 
A successful strike can blow away a target's entire chest with a direct hit. 
The attack is rather straightforward, but very quick and powerful.
When Killer Bee uses this attack, he creates a chakra cloak in the form of bull's horns. 
He refers to this as his "Eighth" sword, next to his seven conventional katana.


Seven Swords Dance
Killer Bee goes into a pose with his seven swords. 
The swords are charged with lightning chakra to greatly increase their cutting power through high-frequency vibrations. 
He holds a blade at both his elbow joints, one at his left armpit, one in his mouth, one in his right neck joint, one between his stomach and one at his right leg. 
As strange as it seems, Killer Bee is very skilled with these blades, and spins in a manner similar to a buzz saw,
leaving no opening for even a skilled Sharingan user like Sasuke Uchiha and a highly trained swordsman like Suigetsu Hōzuki. 
Striking with his various ways of unpredictable spinning, Killer Bee finds an opening and strikes with all seven of his swords simultaneously.


Tailed Beast Ball
The Tailed Beast Ball is the ultimate attack of a tailed beast. 
The power of the attack is also relative to the power of the user. 
The tailed beasts' jinchūriki can use this ability, though they need to be in their full tailed beast forms.
A fully charged Tailed Beast Ball from the Eight-Tails can fill an entire valley with the explosion.