In an illusion
This fight between Danzo and Sasuke happens in Naruto Shippuden Episode 209: Danzo's Right Arm. More information about Itachi comes out in this episode as well.
He appears because it was time for Sasuke to fulfill his dream: Kill Itachi. He wants to kill Itachi because 12 years ago, Itachi killed the entire Uchiha family, and because Sasuke is part of the Uchiha family, and also Itachi's brother, he found a great chance to avenge his family. By the time he killed Itachi, he was told all the true secrets which he should have known befor he killed Itachi. _______________________________________________________________________ Basic Answer: He appeared because he wanted to fight Sasuke and let Sasuke do what he wanted to do for a long time.
yes [warning spoiler sasuke kills itachi in shippuden]
Yes by Itachi dying in the hand of Sasuke it awaken the Mankeyo Sharingan.
What I know is Danzo vs Sasuke FIRST!!!!!!then Sasuke vs Naruto on the end!!!!!!
No. Deidara dies before they could even fight. If Kabuto revived Itachi in part 3 then maybe they could have had an epic battle. (Deidara gets revived by Kabuto)
Danzo's dead.... Madara would have though. I mean, Sasuke won over Danzo...And Madara is probably more powerful than Sasuke for now. So Chaa.
Yes he is evil, well he seems to be evil. He wants to help Konoha, but he has it all wrong, he does things the 'evil' way, for example he wants the jinchuuriki of the Nine-tails (Naruto) to stay alive, i.e. keeping him away from Pain, so he kills the cute little messager frog that was going to Myobokuzan (frog city) to fitch Naruto. And he didn't help Konoha when it was under attack because he believed it would be repaired afterwords. He is an complex man.
in manga
yes i did not want to give spoilers but sasuke fights itachi and takes sasukes left eye and sasuke takes itachis right eye they keep fighting so finally sasuke kills itachi and does the head poke thing before he dies
at episode 136 shippuden sasuke first got in the fight with itachi. by episode 139 the fight was over. he won because his chakra overbeat itachi's. itachi used susano'o and ameterasu but sasuke summoned orochimaru. In the end. (Spoiler) Sasuke later learns the uchiha secret. He learns his brother wants to die in the fight/.
No. if hapen it will be a bigest fight in konaha. but donzo died in the with sasuke uchiya.