I love it. Itachi is my best character and i have found out many things about his fireball jutsu. his fireball is the only projectile that can block rasengan and chidor* and kunai. when demon naruto and cs2 sasuke both do the shuriken throw while having the chakra aura active the big fireball and big ball of wind will cancel each other out. itachis will blow through either of their's and keep going till it hits them. i love it lol.
Itachi is awesome! He's one of mt best players, usually when*he says "Are you challenging the Akatsuki?" It's just hard when he uses his Ultimate Jutsu. It's hard to make someone come to you. But still he's a great character.
and just for the info his fire ball justu is the regular. not the grand fire ball jutsu like shippuden so don't get them mixed up. itachi was a great char to use. i wish his shadow clones could move faster like on the ps2 and psp versions. but its a great defensive attack as well as offensive and when the opponent tries to throw kunia at the clone it doesn't affect it so itachi's is a great char.
and his fireball jutsu is bigger and better than sasuke's and kakashi's because sasuke is younger and itachi got the jutsu mastered the first time his fatther taught it to him. and kakashi where's a mask plus he's not a uchiha at all just because he has one sharingan in his left eye doesn't mean he gets the full copy of the jutsu he copyies.
kenkai genkai is a blood trait past down from a clan family member to its children. like kimmimaru his clan has the abiliy to extend and use their bones for attack. haku's clan has the ability to take water and wind to make it into ice. itachi and sasuke are from uchiha clan (whic are decendents of byakugan). since sharingan is the descendent it has somewhat abilities like the byakugan(like seeing chakra points) but it doesn't really show the points from the body it only shows the flow of chakra. sharingan gives the user the ability to copy genjutsu, taijutsu, and ninjutsu to copy to use for later. also sharingan can read opponents moves. basically each clan has a different trait and ability.