Naruto: Ultimate Ninja Storm Hints & Cheats

  Unlockable Characters

Unlockable	How to Unlock
Gaara	Clear "Burning Will of Fire" (Flashback Mission: Leaf Destruction Arc)
Itachi Uchiha	Clear "Fatal Encounter" (Flashback Mission: Tsunade Search Arc)
Jiraiya	Clear "A Match with Pervy Sage"
Kabuto Yakushi	Clear "A Whirling Rasengan Explodes" (Flashback Mission: Tsunade Search Arc)
Kakashi Hatake	Clear Genin Training Arc
Kankuro	Clear "The Aburame Clan" (Flashback Mission: Leaf Destruction Arc)
Kimimaro	Clear "Battle with the Sound Beguns" (Flashback Mission: Sasuke Chase Arc)
Kimimaro: Curse Marked Second State Mode	Clear "A Duel that risks their Bond" (Flashback Mission: Sasuke Chase Arc)
Kisame Hoshigaki	Clear "Toad Sage shows his ability" (Flashback Mission: Tsunade Search Arc)
Might Guy	Clear "Odd Beast Battles a Scourge" (Flashback Mission: Tsunade Search Arc)
Might Guy: Eight Gates Mode	Clear "A Duel that risks their Bond" (Flashback Mission: Sasuke Chase Arc)
Naruto Uzumaki: Nine-Tailed Fox Mode	Clear "A Duel that risks their Bond" (Flashback Mission: Sasuke Chase Arc)
Orochimaru	Clear "Sannin Rock Heaven and Earth" (Flashback Mission: Tsunade Search Arc)
Rock Lee: Eight Gates Mode	Clear "A Duel that risks their Bond" (Flashback Mission: Sasuke Chase Arc)
Sasuke Uchiha: Curse Marked Second State Mode	Clear "A Duel that risks their Bond" (Flashback Mission: Sasuke Chase Arc)
Temari	Clear "The Chunin Exam Sleeper Pick" (Flashback Mission: Leaf Destruction Arc)
The Third Hokage	Clear "Unprecedented Mega Battle" (Flashback Mission: Leaf Destruction Arc)
Tsunade	Clear "Tsunade finally opens her eyes" (Flashback Mission: Tsunade Search Arc

Unlockable Costumes

Unlockable	How to Unlock
Gaara's Later Outfit	Clear "Gaara Returns" (Flashback Mission: Sasuke Chase Arc)
Kankuro's Later Outfit	Clear "Gaara Returns" (Flashback Mission: Sasuke Chase Arc)
Sasuke Uchiha's Black Outfit	Clear "Sasuke and Gaara" (Flashback Mission: Leaf Destruction Arc)
Shikamaru Nara's Chunin Outfit	Clear "Shikamaru's Squad is summoned" (Flashback Mission: Sasuke Chase Arc)
Temari's Later Outfit	Clear "Gaara Returns" (Flashback Mission: Sasuke Chase Arc)

References::Gamespot    

Unlockable Characters