Naruto: Ultimate Ninja Storm

Bonus characters
Successfully complete the indicated task to unlock the corresponding character:

Gaara: Successfully complete "Burning Will Of Fire" in Flashback Mission: Leaf Destruction Arc.
Itachi Uchiha: Successfully complete "Fatal Encounter" in Flashback Mission: Tsunade Search Arc.
Jiraiya: Successfully complete "A Match With Pervy Sage".
Kabuto Yakushi: Successfully complete "A Whirling Rasengan Explodes" in Flashback Mission: Tsunade Search Arc.
Kakashi Hatake: Successfully complete the Genin Training Arc.
Kankuro: Successfully complete "The Aburame Clan" in Flashback Mission: Leaf Destruction Arc.
Kimimaro: Successfully complete "Battle With The Sound Begins" in Flashback Mission: Sasuke Chase Arc.
Kimimaro (Curse Marked Second State): Successfully complete "A Duel That Risks Their Bond" in Flashback Mission: Sasuke Chase Arc.
Kisame Hoshigaki: Successfully complete "Toad Sage Shows His Ability" in Flashback Mission: Tsunade Search Arc.
Might Guy: Successfully complete "Odd Beast Battles a Scourge" in Flashback Mission: Tsunade Search Arc.
Might Guy (Eight Gates): Successfully complete "A Duel That Risks Their Bond" in Flashback Mission: Sasuke Chase Arc.
Naruto Uzumaki (Nine-Tailed Fox): Successfully complete "A Duel That Risks Their Bond" in Flashback Mission: Sasuke Chase Arc.
Orochimaru: Successfully complete "Sannin Rock Heaven And Earth" in Flashback Mission: Tsunade Search Arc.
Rock Lee (Eight Gates): Successfully complete "A Duel That Risks Their Bond" in Flashback Mission: Sasuke Chase Arc.
Sasuke Uchiha (Curse Marked Second State): Successfully complete "A Duel That Risks Their Bond" in Flashback Mission: Sasuke Chase Arc.
Temari: Successfully complete "The Chunin Exam Sleeper Pick" in Flashback Mission: Leaf Destruction Arc.
The Third Hokage: Successfully complete "Unprecedented Mega Battle" in Flashback Mission: Leaf Destruction Arc.
Tsunade: Successfully complete "Tsunade Finally Opens Her Eyes" in Flashback Mission: Tsunade Search Arc.

Alternate costumes
Successfully complete the indicated task to unlock the corresponding costume:

Gaara's later costume: Successfully complete "Gaara Returns" in Flashback Mission: Sasuke Chase Arc.
Kankuro's later costume: Successfully complete "Gaara Returns" in Flashback Mission: Sasuke Chase Arc.
Sasuke Uchiha's black costume: Successfully complete "Sasuke and Gaara" in Flashback Mission: Leaf Destruction Arc.
Shikamaru Nara's Chunin costume: Successfully complete "Shikamaru's Squad Is Summoned" in Flashback Mission: Sasuke Chase Arc.
Temari's later costume: Successfully complete "Gaara Returns" in Flashback Mission: Sasuke Chase Arc.

Jutsu juggle enders
After using a combo that knocks your opponent into the air, press Triangle, then hold Circle to charge a Jutsu. When your enemy falls and your heads are at equal height, release Circle, and the Jutsu should connect.