Press L1, R1, L2, R2, Right, Square, L3, R3 at the mission selection screen in multi-player mode. Note: In the Japanese version, press L1, R1, L2, R2, Left, Square, L3, R3 at the mission selection screen in mult-player mode.
All Special Abilities
Pause the game, simultaneously press and hold L1 and L2, and then press Up, Up, Down, Down, and release L1 and L2, and then press square, square, R1, R2. If you entered the code correctly, a menu will appear at the pause screen.
Alternate ending sequence
Get a "Grand Master" rank on all levels with Rikimaru and defeat Tenrai. You will be treated to a new ending, and will have to fight Tenrai a third time before he completely dies.
Alternate Rikimaru
Hold L1 + R1 and press Left(2), Right(2), Up(4) at the main menu.
Control enemies
Press Start on controller one to pause game play in story mode, then press L1, R3, R1, L3, Right, Square, Up, Square, L2, Left, Square, Down, R2 on controller two. The game will automatically resume to confirm correct code entry. Have player one walk towards an enemy or innocent. When close enough, player two should be able to control him/her. Note: Enabling this code may glitch the game. This code gives player two complete access to every enemy at once. When the code is enabled when near an enemy with the "?" on radar (meaning they do not know you are there), you will be able to use simple basic controls with controller two, using the D-pad. Press Left or Right to rotate all enemies on the map. They rotate similar to a character in a Resident Evil game. Press R1 to make all enemies duck. Press X to make them all jump. All enemies can also double jump. Press Forward to will make all enemies on the level move forward. They cannot attack if the code is enabled in the "?" state. Doing the code when an enemy is in the "!" state will allow player two to access all enemies in attack state. All enemies on the level will be able to do the same thing as "?" state enemies, but will be able to attack with Square, and will be be able to move backwards with the D-pad. Enemies do not hurt other enemies; only you. You can now also block attacks with all enemies. Repeat the code to disable its effect. The best use of this code is for stealth killing everybody, as when the code is enabled, enemies do not have an active AI and will no longer react to you on sight, even if you hit them. You can also force enemies off ledges and cliff sides.
You can toggle enemy's attack mode by pressing L3 on controller two.
Note: This will also cause enemies to not attack you if you approach them.
Defeat A Boss Easier
If you want to fight boss easier (without sticky bomb), Wait until the boss (every stage) attack you, Press R1 and avoid every time the boss attack, and make sure you got a free space to attack.You can do this to all boss.
Defeating Demon Ninjas
When in a fight with two or more Demon Ninja, be very careful. If you are busy fighting one, the other can perform a stealth kill on you. Be sure to watch all Demon Ninja.
Defeating Kagura
If you have the Wrath Of Heaven, use it on the big partner first instead of running around and trying to hit her, because he will come after you. Dispose of him with the Wrath Of Heaven and he will fall with one shot. You will then have all the time to carefully kill Kagura.
Defeating Tenrai
Use the following trick to kill Tenrai's second form in less than fifteen seconds. This requires one Binding spell, two Fire spells, and the Wrath Of Heaven ability. As soon as you regain control of Ayame, cast the Binding spell. Stay in the circle, and wait until Tenrai gets "bound" when he runs up to the edge. Cast a Fire spell to knock him back. Repeat this step with the remaining Fire spell. When he returns and gets bound again, use the Wrath Of Heaven to defeat him.
The following is a much easier way to kill Tenrai's second and third form on the last level. As soon as the intermission sequence ends and Rikimaru can focus through his right eye, perform Wrath Of Heaven just before Tenrai runs towards you. Do the same thing again for the third form. If done correctly, there is no need to bother with the Bind or Fire spell.
Different stealth kills
If you play story mode or any different mode you simply have to be near an enemy and choose a side (left side, right side, frontside or backside) and press square. The character will do a stealth kill which is different from each side! The character will only do a stealth kill if the enemy didn't saw you. Note: You can also perform a stealth kill from the air ( from the front and from the back )
Display score and time
Press Start to pause game play, then press Right(2), Left(2) on controller two. Note: In the Japanese version, press Start to pause game play, then press Left(2), Right(2) on controller two.
Double stealth kills
Go to co-op mode, choose your player, and sneak up on an enemy using stealth. Both of players must be near the enemy when one of them presses Square to perform a double stealth kill.
Easier Boss fights
Before you enter a level, bring about five or six Sticky Bombs with you. Save them until the Boss fight. Once you fight him, back up and use the Sticky Bombs. It should only take a few. This is the easy way to defeat Bosses, as the Sticky Bombs take off a lot of life and are unblockable.
Use a Blow Gun Dart to stun the Boss (or a Smokebomb if you are out). Then, use a Fire Dart while the Boss is stunned. If you have enough, the Boss will die before reaching you. This works well on Tenrai. Note: Save your items for only the fights that are difficult.
Easy Falling
In this game, jumping from high above to a level or ground below will stun you for a split second, sometimes leaving you vulnerable to enemy attacks and other threats. To avoid this from ever happening, simply press the X button to attack right before you land. This will allow Tenchu to attack in a downward slash, negating the otherwise-ill effects from a high fall.
When falling from a high place, you can do the tumble, but it will leave you temporarily vulnerable to enemy attacks. To prevent such an occurrence, hold down the stealth button (R1) while falling, holding the button until you land. If you do this properly, you'll land crouched instead of tumbling, making you instantly ready to deal with any enemy threat.
Easy kills
Wrath Of Heaven is the best attack in the game, but it will drop you down to one life point within mere seconds of its attempt. Pause game play in mid-attack and enable the "Recover health" code. By doing this, if your opponent swings his sword at you in mid attack, you will not die. Also, if you do not have any smoke bombs, just knock an enemy down and immediately perform Wrath Of Heaven. If timed correctly, it will hit him just as he stands.
Have the blow dart equipped and sneak up near an enemy. Aim the blow dart at the opponents head and fire. If you hit them in the head, it will be an instant kill. This is helpful when encountering the ogre in level 3.
Easy stealth kills
This trick works better on high roof levels such as Rikimaru's first mission. If you have trouble anticipating when to perform a stealth kill, use a Poison Rice. Throw it in front of the guard and slice him before he eats it. Then, retrieve your rice and repeat the attack. You must be on a roof or cliff to do this best.
Run or walk up against an enemy's side or back and press Square (default) to stealth kill him. You can also stealth kill him in front, but you have to do this very quickly, before he notices you. Note: All stealth kills must be executed before the enemy notices you. Also, you can see different animations for each character depending on which side of the stealth kill is in view. Each character has a different stealth kill.
Falling
When you are falling long distances, hold R1. When you land, you will not fall over and have to wait for your character to get back up. This is useful when you are trying to jump on an enemy and miss.
Use the following trick in order to hide easier or stop a fall off a roof or ledge. If you are near a ledge, crouch down and roll backwards. As you roll backwards, press Left Analog-stick Up. If done correctly, you should grab the ledge instead of just falling. This is a good way to quickly hide from enemies on rooftops or adjacent ledges.
Fireworks of death
When playing as Rikimaru or Ayame take the Fireworks item with you, and if desired, the Chameleon Spell to make this easier. Place the Fireworks close to your enemy. If he or she is unaware of your presence, he or she will die instantly. If you are spotted, you can lay the Fireworks and wait until the enemy is close enough. This will cause serious damage.
Fortress Of Evil B: More items
Use the following trick to get more items in co-op mission 6 (Fortress Of Evil B). When you start, have someone kill Tajima (the man with the gun) first. Do not touch Nasu yet. When you have killed Tajima, have both you and your partner gang up on Nasu. Do not slash him. When he starts bowing down and says "Please don't kill me", he will then say "I'll give you this" and places an item on the ground, After this, have yourself or your partner do a double jump directly over him. He will say "Sucker" and start spinning around. Have the person who did not jump run up and get the item before he stops spinning. Keep doing this as many times as desired. Also, instead of doing a double jump, you or your partner can just throw a star at him and he will take a few steps back. Then, the person who did not throw the star can run up and get the item.
Funny death
As Rikimaru, do a slope stealth kill and make sure your target lands so that they will bow down to you. Then, go to back of him and look where the blood is spurting from.
Get Extra Level
Go to the main title screen and press L1, Up, R1, Down, L2, Right, R2, Left.
Get Hidden Level
Go to the main title screen and press Up, Down, Right, Left, X, X, X.
Get More Health
During gameplay pause and press Up, Down, Right, Left, Square, Square, Square.
Guard cats
Cats are invincible. You cannot even stealth kill them. Their only purpose is alerting every guard in the area. Stay away from them if you can.
Increase Items
At the Item Selection Screen hold R2 + L2 while pressing: Square, Square, Square, Up, Left, Down, Right.
Increase items
Hold R2 + L2 and press Square(3), Up, Left, Down, Right at the item selection screen Note: In the Japanese version, hold R2 + L2 and press Square(3), Right, Down, Left, Up at the item selection screen.
Increase Score
Pause the game, plug a controller into the second controller port, and with that controller simultaneously press and hold Li and R1, and then press Right, Right, Left, Left. If you entered the code correctly, the game will automatically resume.
In-game reset
Press R1 + R2 + L1 + L2 + Start + Select during game play.
Invincibility
Enable the "Unlock all items" and the "Unlimited item capacity" code. Get between 50 to 100 Chameleon Cloaks and/or 50 to 100 Invisibility Cloaks. Note: The Invisibility Cloaks will not let you use any item except for the same item; the Chameleon Cloaks will.
Killing innocents without losing Kanji
Play a stage with a beehive. Note: The first stage has two of them. Lure enemies and innocents near a beehive with either a poison rice or a magazine (Tesshu). Then, hit the beehive with either a shuriken or a throwing needle and watch the bees take care of them. You will not lose any Kanji when the bee's kill an innocent, nor will you gain any as a stealth kill. This helps take care of groups of enemies, as the bees attack multiple targets at once. You can re-hit the hive to have them finish the job. Note: If you are too close to the hive or are the only one in the vicinity, the bees will attack you.
Take a few low-damage range weapon with you, such as throwing stars, or pick up bows and arrows from the guards, and bring along some poison rice. Generally two arrows or stars will be just enough to bring an innocent person's health down to the point where the rice can finish the job. However, sometimes these two stars or arrows will just be enough to kill them; you will have to experiment with the damage they do at different ranges. However, you have to throw the rice last, as they only eat a poison rice ball once.
New items
Get a rank of Grand Master on a level to unlock new items. The item is different for every level.
Painful death
As Rikimaru, sneak up on someone and try to stealth kill them from the front. After the intermission, look where the blood is spurting out from. Note: It looks better with male enemies.
Play as Chibot in multi-player mode
Successfully complete level 6 as Rikimaru or Ayame.
Play as Hamada in multi-player mode
Successfully complete level 2 as Rikimaru or level 3 as Ayame.
Play as Jinnai in multi-player mode
Successfully complete level 6 as Tesshu.
Play as Jonin Blue in multi-player mode
Successfully complete level 4 as Rikimaru or level 8 as Ayame.
Play as Jonin Red in multi-player mode
Successfully complete level 3 as Rikimaru or level 8 as Ayame.
Play as Kagura in multi-player mode
Successfully complete level 8 as Rikimaru or level 9 as Ayame.
Play as Kenpo Bouzu in multi-player mode
Successfully complete level 8 as Rikimaru or level 9 with Ayame.
Play as Kunoichi in multi-player mode
Successfully complete level 9 as Rikimaru or Ayame.
Play as Mr. D Ceo in multi-player mode
Successfully complete the Through The Portal bonus level as Rikimaru.
Play as Nasu in multi-player mode
Successfully complete level 1 as Rikimaru or level 2 as Ayame.
Play as Ninja Dog in multi-player mode
Get a "Grandmaster" rank in all of Ayame's levels.
Play as Onikage in multi-player mode
Successfully complete level 5 as Rikimaru or level 6 as Ayame.
Play as Semimaru in multi-player mode
Get a "Grandmaster" rank in all of Rikimaru's levels.
Play as Taijima in multi-player mode
Successfully complete level 1 as Rikimaru or Ayame.
Play as Tatsumaru in multi-player mode
Successfully complete level 10 as Rikimaru or Ayame.
Play as Tesshu in multi-player mode
Successfully complete the game as Rikimaru or Ayame.
Praying Ninjas
While playing as Ayame, perform a stealth kill on an enemy while he or she is on a slope. After she kills them, they will seem to be "bowing" down to you.
Repel enemies
When playing as Tessu, you can actually repel enemies that are chasing you. If an enemy is chasing you, simply move out of sight and get into stealth mode up against the wall. Use your barnyard animal call and the enemy will think that you were just an animal and simply walk away and return to green mode.
Rescue Counsel Sekiya: Defeating Boss
At the end of the level, after you blow up the rock you have to defeat Kagura. Pay no attention to her and instead attack the huge wolf. If you ever get seriously injured you can jump up on the outer wall, since the part you start fighting in is sunken. Nether of the enemies can hurt you here. You can heal freely and use items such as shooting the blow gun or throw shuriken. They cannot block these. Use them to wear the enemies down.
Restore Health
Pause game and then press: Up, down, Right, Left, Square, Square, Square.
Restore heath using ninja rebirth items
This trick will only work if you have ninja rebirth items and the Wrath Of Heaven attack . Use the Wrath Of Heaven. It does not matter if you hit or miss. When you have one heath point remaining, kill yourself by using the Forge Death move. You will return at full heath.
Rikimaru: Double K.O.
Select versus in multi-player mode and have both players choose Rikimaru. You must have the Wrath Of Heaven skill. Stand in front of each other and use Wrath Of Heaven simultaneously.
Rikimaru's Temple level: Defeating Boss
When fighting the Boss on the Temple level, do not attack the big red enemy. Instead, attack the teleporting lady. You can only get the red enemy down to no less then 100 HP until he is automatically revived. However, she is weak. Kill her and the red enemy will be killed anyway and you will fight Tatsumaru instead.
Secret attacks
To perform a secret attack with the various characters, spin the Left Analog-stick and tap Square. Note: This may require a few attempts.
When using Tesshu, press X + Circle. You will see red smoke around his arms. When you now punch somebody, they will catch on fire. This will only work for a short time, but you repeat it again. Note: This works for only Tesshu, unless you go to the versus mode and use different people, except for Rikimaru and Ayame.
See through walls
In Echigoya's castle as Rikimaru or Ayame, find the vertical beam in the middle of the wall just outside of the room with the tree. Jump directly into the beam to cross through. The game does not load the wall textures, and you can now see all the way through, run around, etc.
In the level where you go after the merchant, a similar event will happen if you use the grappling hook at the back door of the main house, if you are close enough to the door to allow it to load the next sub-level when you jump up. You then end up falling, and as long as you do not pull up (drop down instead), the wall/floor/ground textures will not load. You can go quite a distance into the house without them loading.
Show Score
Pause the game, plug a controller into the second controller port, and with that controller press Right, Right, Left, Left. If you entered the code correctly, the score and time will appear at the bottom of the screen.
Stealth at the Beginning of Limestone Cave
At the start of the mission you will start inside a cave. Jump to the lift and kill the guy standing there -- make sure you double jump. Usually you get the !? sign when you hit the ground... that is caused by water. Make sure you double jump on the ground near the waterfall and kill the guy.
Suicide attack
When you unlock Jonin Blue, press X + Square to pull out two bombs. You can run into an enemy and it will take all his life away once it explodes.
If you try to "Forge Death" near a enemy, you will stealth kill him and yourself in the process.
Tenrai has two deaths
In mission 10, Tenrai Fortress-B, when you defeat Tenrai for the last time a FMV sequence will start. Tenrai will have two deaths, depending which choice you made in Rikimaru's cemetery mission and Ayame's Amagai castle mission. Tenrai will be cut in half and he will disintegrate.
Tesshu: Avoiding detection
Once you have his animal mimic, every time someone discovers a dead body, use the technique. They will think it was just a animal.
Throwing things around a corner
There are a few items that you can throw around a corner; Grenades, Poisoned Rice, Smoke Bombs, and Caltrops. Put your back to the wall using R1, move to the very end of the wall, and tap Triangle on the item you wish to throw around the corner. Your character will then take out the item and throw it. If it is a Smoke Bomb, the character will cough and you can move in for a stealth kill.
Undead Ninja Glitch
When you are very low on life (less than twenty should do) in the Cemetary stage as either Rikimaru or Ayame, stand in the garden area near the tree where the hands from the underground attempt to grab you. Use the Fake Death ability to lower your life to zero, and at this time, the hands should grab you. However, once you break free from the hands, you'll be alive with zero life. From this point forward, should you walk off a ledge, you will float in mid-air rather than fall. Occasionally, if you walk up a slope, you can walk underneath the level. Keep in mind that the game will revert back to normal if you take a hit. from an enemy, or if you use a healing item.
Unlimited item capacity
Hold L1 + L2 + R1 + R2 and press Square(3), Up, Left, Down, Right, Square, Up, Right, Down, Left at the item selection screen. Although you can only still carry six different items, you can have an unlimited amount of those specific items.
Unlimited Item Capacity
At the item selection screen, press and hold L1 + R1 + R1 + R2 and press Square, Square, Square, Up, Left, Down, Right, Square, Up, Right, Down, Left.
Unlock all Characters
At the Title Screen press: L1, R2, L2, R1, Right, Left, L3, R3.
Unlock all Items
At the Item Selection screen hold R1 + L1 while pressing: Up, Square, Square, Left, Square, Square, Down, Square, Square, Right, Square, Square.
Unlock All Layouts
At the Mission Selection Screen press: R3, L3, R2, L2, R1, L1.
Unlock All Missions
At the Mission Selection Screen press: L1, R1, L2, R2, Right, Square, L3, R3.
Unlock Bonus Stage
At the Title Screen press: L1, Up, R1, Down, L2, Right, R2, Left.
Unlock B-Side Code
At the title screen, simultaneously press and hold L1 and R2, and then press Down, square, Up, square, Right, square, Left, square. If done correctly, you'll hear a sound. Go to the main menu and select Options. At the Options screen, choose Audio, and at the Audio screen, select Language, where you'll now be able to select B-side.
Unlock the Demo Level
At the ''Start Screen'' press: Up, Down, Right, Left, X, X, X. You will now be able to play the level that was available on the free Demo disc prior to the game's release.
Wrath Of Heaven technique
To get the Wrath Of Heaven technique, you must get ten stealth kills on the last level. This is easier if you enable the "Unlock all items" code, then use the "Increase items" code. The items that are best to get are smoke bombs, the invisibility item, and the item that makes you look like an enemy.
