Level select

At the level selection screen, hold Select + Square + Circle and press Right(3), Up, Left, Down, R2. Note: More levels will become available if Tatsumaru has already been unlocked as a selectable character. For the European/Australian PAL version, highlight a blank mission ("-"), then hold Square and press Right, Left, Down. Release Square and hold Circle. Then, press Left, Right, Up. Hold Square + Circle (without releasing Circle) and press Up, Down.

Restore health

Pause the game, then hold Square and press Left, Right, Up, Down. Note: A perfect score cannot be achieved with the use of this code, as your character will be counted as spotted once in the final score when this code is used. For the European/Australian PAL version, pause the game, then hold Circle and press Left, Right, Up, Down.

Instant kills in story mode (PAL version)

Pause the game in story mode and press R1, L1, R1, L2. Then, hold Triangle and press Down(3), Up. When Triangle is released the game will restart, your health will go down slightly (98%), however you can now kill enemies instantly, even if you are spotted.

All Ninja items

At the item selection screen, press Square(3), Circle, Square, Circle(2), Left, Up, Down, Right, R2(2). For the European/Australian PAL version, press R2, L2, R2, L2 at the item selection screen. Then, hold Select and press Right, Left, Circle, Square, Down, Up(2).

Increase items by one

At the item selection screen, hold R1 + Square and press Right, Down, Left, Up. For the European/Australian PAL version, hold R1 + Circle and press Right, Down, Left, L1 at the item selection screen.

Full map

While playing the game, hold Select to display the map, then press Circle(5). For the European/Australian PAL version, press Select during a game to display the map, then hold Select + R1 and press Circle(5).

Play as Tatsumaru

At the level selection screen, hold Circle + Square and press R1, R2, L2, L1, Up, Down, Left, Right, Select to unlock Tatsumaru in the mission editor. Alternatively, successfully complete the game with both Rikimaru and Ayame. For the European/Australian PAL version, highlight another character, such as Ayame, then hold Circle + Square and press Right, Up, Left. While continuing to hold Circle + Square, also hold Down and press L1, L2. Continue to hold Circle + Square, release Down, and press Select.

All missions in mission editor

Enter the custom mission screen in the mission editor, then hold R2 + Circle and press Up, Down(2), Right, Left(2).

Game levels in mission editor

Enter the mission settings screen in the mission editor, then hold Circle and press Up(2), Down(2), Left, Right.

Custom game levels in mission editor

Enter the mission editor and highlight the "Edit Mission" option. Then, hold Circle and press Up(2), Down(2), Left, Right. If you entered the code correctly, you will hear a sound, and a CD icon will appear between "Edit Mission" and the memory card icon. For the European/Australian PAL version, enter the mission editor and highlight the "Edit Mission" option. Then, hold Square and press Up(2), Down(2), Left, Right.

Office tileset in mission editor

Enter the mission editor and select the "Edit Mission" option, then highlight the "New Mission" selection. Hold L2 and press Circle, Square, Left, Right, Circle, Square. If you entered the code correctly, you will hear a sound.

Tenchu, Inc./Office in mission editor

Enter the mission editor and highlight the "Create New Mission" option. Then, hold R2 and press Left, Square, Left, Square, Right(2), Circle. Press X and "Office" will be unlocked. Tenchu, Inc. will also be unlocked in "Custom Missions".

European castle in mission editor

Successfully complete the game with all three characters.

More options in mission editor

Simply advance in the game to get more options in the mission editor. As your character reaches new levels with new tilesets, the same tileset will then be available in the editor.

Hints

High jump

If you are in certain levels (Quarantine Village, Laborers), you do not need a grappling hook to get on to the roof of a house. Run up to the wall, face it, and jump. Your character will jump twice the normal height of the usual jump and land on top of the roof without hanging on the side.

Easy kills

Hit an enemy who is not aware of your presence in the head with a blow gun dart to automatically kill them.

Automatic stealth kill

You do not need to pull out your weapons to perform a stealth kill. Run to the enemy and press Attack. Your weapons will instantaneously be drawn out, and you will perform the stealth kill.

Stealth kills

You can get the different stealth kills by being in the correct position in relation to the enemy.

Easy stealth kills

Sneak up from behind.

Sneak up from behind and crouch.

Jump on enemy, while pressing Attack in mid-air.

Moderate stealth kills

Sneak from the side.

Hard stealth kills

Sneak from front (or wait for them to turn around into you). Note: This must be timed perfectly.