Level Select: Hold Select + Square + Circle and press Right(3), Up, Left, Down, R2 at the level selection screen. Note: More levels will become available if Tatsumaru has already been unlocked as a selectable character. Alternately, press Start at the map screen and enter the load/save menu. Then, hold R1 and press Up, Down, Square, Up, Down, Square, Up, Down, Square, Down, Up, X.
Recharge Health: Pause game, press and hold Square, then press buttons Left, Right, Up, Down.
All Missions in Mission Editor: Enter the custom mission screen in the mission editor, then hold R2 + Circle and press Up, Down, Down, Right, Left, Left.
Game Levels in Mission Editor: Enter the mission settings screen in the mission editor, then hold Circle and press Up, Up, Down, Down, Left, Right.
Unlock All Ninja Items From the Item Selection Screen: Press Square(3x), Circle, Square, Circle, Circle, Left, Up, Down, Right, R2, R2.
Increase Item Inventory by 1 From the Item Selection Screen: Hold R1 and Square and press Right, Down, Left, Up.
Play as Tatsumaru: Beat the game as both Rikimaru and Ayame. Or You'll be able to use Tatsumaru in the mission editor after inputting the following code from the Stage Selection screen: Hold Circle and Square, press R1, R2, L2, L1, Up, Down, Left, Right, and Select.
More Objects & Tilesets for Mission Editor: Simply advance further in the game to make new areas and object available in the Mission Editor.
We're Not in Japan Anymore: Beat the game with all three characters and then go to the mission editor screen. You'll notice a European castle to play with, complete with knights and nobles.
Full Map of the Level: While playing the game, hit select to display the map, then press Circle, Circle, Circle, Circle. Note: Once you let go of select, the map will clear. You will have to put in the code again to see the full map.
Uh...Interesting Looking Rikimoru: At the item selelect screen, use "ninja armor" and when your done picking and have entered the game he looks VERY stupid for lack of a better word.
