Unlock Kishimoto Masashi
After beating the game and unlocking arena mode go to the map screen and enter this code
CodeEffectStart Down Up Down Up Right Right Left Left Right Down SelectUnlock Kishimoto MasashiSelect Up Down Up Down Left Left Right Right Left Up StartUnlock OrochimaruUnlockables
Secret modes and characters you can unlock
UnlockableHow to unlockArena ModeClear all missionsFree ModeClear all missionsPlay as Aburame ShinoDefeat him in Arena ModePlay as Akimichi ChoujiDefeat him in Arena ModePlay as Dosu KinutaDefeat him in Arena ModePlay as GaaraDefeat him in Arena ModePlay as HakuDefeat him in Arena ModePlay as Hatake KakashiDefeat him in Arena ModePlay as Hyuuga HinataDefeat her in Arena ModePlay as Hyuuga NejiDefeat him in Arena ModePlay as Inuzuka KibaDefeat him in Arena ModePlay as KankurouDefeat him in Arena ModePlay as Kin TsuchiDefeat her in Arena ModePlay as Momochi ZabuzaDefeat him in Arena ModePlay as Nara ShikamaruDefeat him in Arena ModePlay as Rock LeeDefeat him in Arena ModePlay as TemariDefeat her in Arena ModePlay as TenTenDefeat her in Arena ModePlay as Yamanaka InoDefeat her in Arena ModePlay as Zaku AbumiDefeat him in Arena Mode