Konohamaru bonuses - Successfully complete the game, then talk to Konohamaru. A touchscreen password system will appear, consisting of twelve square areas arranged in a grid. Assume the areas are assigned to numbers on the touchscreen as follows:
Play as Jiraiya - Play 50 multiplayer matches to unlock Jiraiya.
Play as Kakashi - Play 25 multiplayer matches to unlock Kakashi.
Play as Sasuke - Successfully complete the game. Then, enter Sasuke's house, look at his picture and press A.
Sound Test option - Successfully complete the game to unlock the "Sound Test" option.