Here are the specials of some of the characters; their power is measured A,B,C,D,and E:
Naruto: Izumaki Barrage: Clones himeself and hits enemy hard. Damage: D
Sasuke: Lions Barrage: Kicks foe into air, hitting him/her with many more kicks before
slamming him/her onto the ground. Damage: C
Sakura: Inner Sakura: Her inner self appears, hitting the opponent several times before
Sakura kicks them away making the L for Loser sign as they fall.  Damage: C
Kakashi and Kakashi with Sharingun: Lightning Blade (hold X to charge): Charges power in
hand before lunging at opponent; his hand leaving a trail of electricity. Damgage: D-A
(depends on charge)
Lee: Primary Lotus: Kicks opponent into air, Wraps them in bandages and drives them into
the ground headfirst. Damage: B
Inner Gates Lee (activated by pressing down X twice): Hidden lotus: Disappears, hitting
opponent in air incredibly fast before slamming them down to the ground, only to be pulled
back up like a yo-yo and hit again. Damgage: A
Shikamaru: Shadow Possesion Jutsu: takes control of opponent and makes them slam their
head into a conveniently placed wall. Damage: C
Ino: Mind Transfer Jutsu: Posseses opponent's body, returning to her own just in time to
dodge "Human Boulder."  Damage: C
Hinata: Gentle Fist: Hits opponent's weak points with powerful blows before hitting them
with a  blast of energy.  Damage: B
Kiba: Fang over Fang: Akamaru turnes into a clone of Kiba and they both spin around
hitting you like drills.  Damage: C
Gaara: Sand Burial: covers opponent in sand and then suffocates them.  Damgage: C
Iruka: Lightning Bolt Attack: Knocks opponent into air before slamming them back down;
throws shurikens to hold opponent in place before slamming into them whhile spinning.
Damage: B
Negi: 64 Palm: Hits 64 pressure points all over opponents body:  Damage: B
Kankuro: Puppet Master Jutsu: Tortures enemy with Crow, the puppet. Damage: C
Haku: Crystal Ice Mirrors: Disappears into mirrors and Throws Senbon from all mirrors at
once.  Damage: B
Zabuza: Silent Killing Technique: Disappears into Mist and Slices enemy with sword.
Damage: B
Guy: Embrace of Youth: Punches enemy to ground and then hugs them until their back breaks.
Damage: B
Nine-Tailed Naruto: Demon's Rage: Slices you with claws several times before blowing you
away with demon energy. Damage: B