Ninja scroll number 3:
The Uchiha bloodline limit
The sharingan is considered one of the more advanced of the many eye-based blood-limits. It can be used to see through illusions and to copy any form of jutsu it is exposed to, including all forms of taijutsu. It does not, however mean that one can use the taijutsu forms copied. Since taijutsu is a physical form of combat a user's body must be capable of handling the strain it would have to under go or else the taijutsu copied is useless.
There are several stages of the sharingan, the first being the plain sharingan and the most advanced being the mange sharingan. Not much is known about the stages but most believe that there is more than one trigger for each one. However as the stages become more advanced it becomes harder and harder to find multiple triggers. Such as the mange sharingan. At present the only known trigger is to take the life of your closest friend and companion. Naturally, the clan council rejected this approach and research was instituted for the discovery of a new trigger. As of late no trigger has been found and the only known user of the mange sharingan is Uchiha Itachi.
Though the sharingan are always red it is relatively easy to tell whether a users has reached and advanced stage of sharingan. The reason is the sharingan's 'blades' that circle the pupil. Depending on the stage a person has reached the sharingan either has two blades or three. Only those who have reached the completed stage of the sharingan (the mange sharingan) have all three blades enabling them to perform mass amounts of jutsus as well as enter into the minds of those unfortunate enough to stare into them for to long.
Kaliea: There ya go. More about the Uchihas.
Review Answers:
Dragon Man 180: Unfortunately yes, they will. Also I agree with you about Orochimaru, he's a grade A jerk-off. And don't worry; Hikari and Itachi get in plenty of hits.
Juya: Thank-you. Although aside from the fact that it will lead to the prologue scene I'm not really sure where it's going…-.-;