Naruto Codes -

Play as Bandits:
Lose on level 3, but defeat Haku and the Bandits on level 5.

Play as Haku:
Defat Haku and the Bandits on level 5.

Play as Iruka:
Defeat Iruka and Kakashi on the last level.

Play as Kiri Ninjas:
Lose on level 3, but defeat Kiri Ninjas and Sabusa on level 4.

Play as Konohamaru in multi-player mode:
Defeat Sakura in story mode level 2.

Play as Konohamaru in story mode:
Successfully complete story mode without losing to Sasuke.

Play as Sabusa:
Lose to Sasuke in the running competition, then save the game. Quit the game, then lose the climbing competition. Then, complete level 6.

Play as Third Hokage:
Defeat Third Hokage on level 7.

Play as Tsunin:
Lose on level 3, then win up to level 7 and defeat Iruka. Finally, complete level 1.