Brief Overview of Ninja

Image of ninja

Professional Spy in Feudal Japan Highly trained in Stealth and Secrecy
Ninja is a name of individual or group who served daimyo (Japanese territorial lord) or feudal lord doing intelligence activities and assassinations from the Kamakura period to Edo period in Japan. Ninja is well known not only in Japan, but also in the world. Ninja was a group who was mainly doing covert operations for a feudal lord. Their position was different from that of samurai or ashigaru (common foot soldier). A recent study shows that ninja was a group of engineers who had abundant knowledge of animals and plants, and chemistry as well as a group of intelligence agents who had great physical ability and were strictly disciplined.

Ninja didn’t wear “Solid Black”
Image of ninja wearThey are often described as "dressed in solid black", "wearing kusari-katabira (chain woven protective wear) inside and paint their face with black ink", "carrying a sword on the back" or "break into the enemy territory under cover of darkness", but a figure in black costume can be seen in the night, thus it is considered that their costume was dark blue or persimmon color. Most of the existing costumes which are considered to be "ninja costume" are persimmon color or similar colors. Since they focused on escaping rather than fighting, usually they didn't wear heavy kusari-katabira to be as nimble as possible. The sword carried on the back encumbered their move, they normally belted a sword on. However, when they crawled under floor, they carried a sword on the back to move easily in the narrow space and used it as a shield.

Image of ninja

Art of Ninjutsu in Darkness and Light
They conducted various special trainings and had special tools, the tools are called "Ningu" and the various techniques including art of escaping and fighting are called "Ninjutsu". There are two types of ninjutsu, "Innin" (Ninjutsu of Darkness) and "Yonin" (Ninjutsu of Light). Innin is a way of seeking an inside information and sabotaging by breaking into the enemy territory concealing themselves, the appearance of ninja which generally people imagine is of this situation. On the other hand, yonin is a way of accomplishing a purpose with a trick exposing themselves to the public. So-called intelligence, conspiracy and dividing operation are included. Some kobujutsu (old manners of Japanese martial art) still have traces of ninjutsu.

Special Female Ninja called “Kunoicho”
Image of KunoichiFemale ninja is generally called "Kunoichi" (the origin of this code name was a Japanese character "女" meaning woman, and it is considered that this character was broken down into three characters "く (ku)", "ノ (no)" and "一 (ichi")). there is a description that a female ninja snaked into the castle masquerading as a housemaid and it is considered that she used "women's gossip" for the intelligence activity and created considerable performance. Famous kunoichi appeared in historical fact is a group of arukimiko who served Shingen TAKEDA.

Traditional Ninja Weapon of Shuriken
Traditional Ninja Weapon, "Shuriken"
Remaining Ninja Yashiki in Iga Region
Remaining Ninja Yashiki in Koga Region
Must See Videos
Video Contents
1. Documentary of Ninja (46:55)
2. Fight Scene between Ninja and Samurai (4:31)
3. Documentary of Art of Ninja (27:16)

Origin and History of Ninja

Image of Sengoku Jidai

Ninja arose with the Period of Warring States in Japan
There are several theories about the origin of ninja. They formed some groups in regions around Japan. Particularly, groups of ninja which were based in Koga and Iga were famous. In these locations, there were many ninja houses and they conducted daily training. Since most territories of Koga and Iga were shoen (manor in medieval Japan) in the Kamakura period, they were not controlled by shugo (provincial constable) or jito (manager and lord of manor), but when the shoen system collapsed in the Sengoku period (in Japan), dozens of jizamurai groups struggled for power. It is considered that "Ninjutsu" arose spontaneously in the condition that each jizamurai always fought an information war and a guerrilla war to maintain power.

Ninja worked for, and Fought against Samurai at the same time
Image of Sengoku JidaiIn Iga Province, three families of Jonin (upper class Ninja), the Fujibayashi clan, the Momochi clan and the Hattori clan controlled other jizamurai and adopted collegial system to form the area not controlled by daimyo (Japanese territorial samurai lord) in the Sengoku Period (period of warring states). They united and fought against invasion from outside, when famous samurai load Nobunaga ODA sent Katsutoshi TAKIGAWA to control Iga Province, they dismissed him, and also eliminated Nobukatsu ODA's army who invaded in retribution (the first Tensho Iga War). When Nobunaga schemed a conspiracy with a part of enemy and invaded again with a great army, the other groups of ninja in Iga Province suffered catastrophic damage (the second Tensho Iga War). It is said that Tanba MOMOCHI and other one hundred ninja fled down to Negoro, Kishu Province.

Japanese Castle

Iga and Koga Ninja swore Allegiance to Edo Bakufu
Iga ninja started to be hired by Edo bakufu (Japanese feudal government headed by a samurai shogun) because when Ieyasu TOKUGAWA visited Sakai (present-day Sakai City, Osaka Prefecture) for sightseeing at the time of Honnoji Incident, they escorted and helped him to pass through Iga Province. In particular, Masanari HATTORI was treated preferentially and one of the gate of Edo-jo Castle was named after him and it still remains as a geographical name of Tokyo, "Hanzomon". As well as seeking inside information of territorial lords for the Tokugawa shogunate, they kept peace of the Edo-jo castle town as doshin (a police constable) by handling surveys near the Edo-jo Castle, guard of O-oku (the inner halls of Edo Castle where the wife of the Shogun and her servants reside) and management of vacant residences. there is a record that when Shimabara War occurred, a squad of Koga ninja sneaked into Hara-jo Castle where rioters barricaded themselves and found the fact that rioters' provisions were running out.

Famous Haiku poet Basho was also a Ninja
Basho MatsuoA haikai poet, Basho MATSUO who walked across provinces in the Edo period was from an area which is present-day Iga City, Mie Prefecture. Thus, there is a theory that Basho MATSUO was actually a ninja or a spy and it is used as a subject of novels and so on. The fact that it is physically difficult for 47 years old man to travel tens of kilometers per day as described in his famous book "the Narrow Road to the Deep North" was used as the basis for the theory. An ukiyo-e artist, Hokusai KATSUSHIKA who lived in the Edo period is also considered to have been a kogi-onmitsu (shogunate ninja). When Kurofune (the Black Ships) led by Commodore Matthew PERRY arrived off the coast of Urawa, the shogunate spy acted for investigation and it was the last activity of so-called ninja.

Both Ninja and Samurai disappeared in peaceful Meiji period
In Meiji period, the administration was transferred to new Meiji Government and Japanese army and navy were created through modernization policy, then ninja lost their job. It is said that after ninja lost the scene of their activities, they got new jobs such as farmers, policemen, pyrotechnicians with special skills of using fire, doctors or pharmacists with knowledge of medicine. Since the said arrival of Kurofune, the existence of ninja had been forgotten, but ninja started to be featured in novels and period dramas from late 1950 and they have come to be recognized among Japanese again.

Iga-Ueno Castle, the center of Ninja Region
Iga-Ueno Castle, the center of Ninja Region

Two Most Famous Ninja Schools

KOGA (KOKA) School of Ninja

Overview of Koga (Koka) School
Koga School (or Koka School) is the most famous school of ninjutsu (ninja technique) along with Iga-ryu, but it is the name that refers to collectively the schools originating from the Koka region in Omi Province and the school named "Koga School" did not exist. Koga, originally pronounced "Koka," is a toponym, but only when referring to the ninjutsu, the mistakenly pronounced "Koga" has become common.

Iga-ryu exists in the region separated by only a mountain from that of Koga School.

Characteristics of Koga School
It originated from today's Koka and Konan Cities in Shiga Prefecture. The people of Koga School were usually engaged in farming or peddling to collect information in various places and, once called, they went to the war fronts or the rear of the battlefields to engage in espionage. Koga School was highly skilled at dealing with medicine among the ninjutsu schools, a vestige of which can be seen in the fact that many pharmaceutical companies are located in Koka even today.

Though Koga belonged to the Rokkaku clan, it formed a soson (a community consisting of peasants' self-governing association), in which all issues were decided and managed by majority (council system). This was quite unusual at the time even at the nationwide level.

Koga ninja had no Jonin (highest level of ninja) and the highest level of the Koga ninja was Chunin (middle level of ninja).

History of Koga School
In the late Muromachi period, the Sasaki Rokkaku clan of Omi Province steadily built up the military force with the Kannonji-jo Castle as their headquarter and started to take light of the orders from the Ashikaga shogunate or even ignore them, therefore Shogun Yoshihisa ASHIKAGA sent an army to subjugate the Rokkaku clan in 1487 and a battle broke out. This battle is called 'Magari no jin'.

When Yoshihisa mobilized daimyo (Japanese feudal lords) from various provinces and got close to the Kannonji-jo Castle, the headquarter of the Rokkaku clan, the father and the son Hisayori and Takayori Rokkaku moved to the Koka-jo Castle to avoid a direct confrontation. Then, Yoshihisa moved the headquarter to Magari no Anyo-ji Temple located in Kurita-gun County and attacked the Koka-jo Castle, and the Koka-jo Castle fell, but the father and the son Rokkaku escaped and ordered the Koga warriors who followed them to resist adamantly against Ashikaga by guerrilla warfare in the mountains. It is said that Koga warriors took a geographical advantage in the mountains to make various surprise attacks against the bakufu army and tormented them by using fire and smoke on Yoshihisa's headquarters during the night.

So, the battle did not easily end, but the death of Yoshihisa in battle in 1489 marked the end of the three-year conflict, and the Rokkaku clan survived. The name of Koga warriors became well-known throughout the country because their elusive and effective guerrilla warfare and high combat ability in this battle were so impressive. The 53 families of jizamurai (literally, soldiers of the land) that participated in this battle were called the "53 families of Koga" (among them, the families which received a letter of commendation from the Rokkaku clan for taking part in the battle and were valued were called the "21 families of Koga") and they were active in both intelligence and fighting activities under the Rokkaku clan until the Koka region was seized by Nobunaga ODA.

After the Koka region fell under the control of Hideyoshi TOYOTOMI from Nobunaga ODA, the Koga warriors were mainly missioned to spy on Ieyasu TOKUGAWA. This fact was featured in storytellings or Yomihon (books for reading) in the Edo period, in the form of "Iga ninja force versus Koga ninja force" stories. Actually it was a war by proxy between Tokugawa and Toyotomi, but because of this the confrontation plot of "Iga vs. Koga" often appears in novels or ninja cartoons even today.

Aburahi Shrine, one of the Koga School's Sacred Place
Aburahi Shrine, one of the Koga School's Sacred Place

IGA School of Ninja

Overview of Iga School
Iga School is one of the most famous schools of Ninjutsu as well as Koga School school.

It was located in present Iga City and Nabari City in Mie Prefecture. They went to a battlefield or the related area to engage in maneuver activities upon order, while they search for information on each region as working as peasant or peddler in their quotidian life.

Characteristics of Iga School
The different point from Koka school which was located in the other area parted by a mountain was for Koka Ninja to dedicate their loyalty to a single lord, while Iga Ninja had no relationship with their employer other than the financial contract made with him.

Iga School was also known for its unique training method such as running through Ichi-ri (about 3. 927km) without dropping a piece of paper covering half face, and it had been their tradition to grow excellent Ninja by giving such hard training since their childhood. Sometimes, Iga goshi even had dispatched Ninja to both employers who were opposed to each other upon request. For the reason, they were required a much tougher spirit than other schools' Ninja, ready for the case that they need to make a prompt judgment even for their fellow. "Nuninseibai" was the extreme of their spirit, which meant that any betrayal and escape was strictly prohibited.

In Edo period, however, the circumstances changed, and they seemed to be rather favorably accepted to quit Ninja and return to field, because it helped reducing the cost for Musoku's salary.

History of Iga School
From Kamakura period to Muromachi period, small feudal lords gained power in each region and were opposed to each other within Iga Province. For the reason, people began to brush up technique for guerrilla warfare for self-defense. This is considered the origin of Iga Ninja.

Iga Province was geographically unsuitable for cultivation because of its clayey soil deriving from ancient Biwa Lake layer. Particularly in a shortage of water, the rice field cracked and suffered from a devastating damage. For the reason, people in Iga Province began to work as mercenary in each region away from home.

In the Sengoku period, Iga Province formed a self-governing community with a strong council system called "iga sokoku ikki" while being affiliated to Niki clan, the Iga Shugo. In case of Iga, however, the forcefulness of speech by powerful Jonin Miyake (Hattori clan, Momochi clan, and Fujibayashi clan) was so strong that people followed their opinion most of the time when a reunion took place. On the other hand, Koka formed a self-governing community called "So" in which people had an equal position and respected the principle of decision by majority, so it was contrast to the administration of "iga sokoku ikki. "In general, there might be an image that Iga and Koka were old enemies just like oil and water, but it is a misunderstanding. They rather thought that it would be nothing profitable even if they were opposed to each other in here and there parted by a mountain like neighbors, and that people in Iga and those in Koka should always be in cooperative relationship, and they made a commitment to repel the enemy if the territory which belonged to one of them was invaded.

Tensho Iga War
In 1579, Kai SHIMOYAMA, one of Iga Ninja, betrayed his fellows and informed Nobuo ODA, the second son of Nobunaga ODA, of Iga's united power's declining and proposed an invasion. Nobuo who was in on Shimoyama's words immediately repaired Maruyama-jo Castle (Iga Province) located on the border and decided to make it a foothold. But Nobuo's plot reached Iga people's ears so soon, and Nobuo was driven into a huge defeat by released Ninja's surprise attack. This is Iga War I.

Nobunaga who was furious at this outcome raged at Nobuo who had moved army without permission and admonished him suggesting breakup of their relationship, but after two years, in 1581, he invaded into Iga Province himself leading about 40,000 soldiers. This is called Tensho Iga War II. Surprised, people in Iga Province immediately decided to raise their army and fight with Nobunaga. However, Mitsuo TARAO, one of Koka Ninja who were supposed to be in cooperative relationship with Iga, withdrew another two dividers from Iga Ninja in order to put them in service as guide for Ujisato GAMO on Oda side. For the reason, the castles where Iga people barricaded themselves were successively conquered, and the fall of Kashiwabara-jo Castle which remained to the end put an end to Tensho Iga War.

After The Tensho Iga War
At the time of opening of Kashiwabara-jo Castle, Oda army and Iga force made a compromise to secure Iga people's lives (many fictional books described that thousands of people were killed by thorough oppression and Ninja who could escape from investigation dispersed all over the country).

Afterward, Iga Ninja who were informed of the death of Nobunaga in Honnoji Incident rose in rebellion and caused conflicts in each region.

One of the famous episodes is that Ieyasu TOKUGAWA who had been in Sakai City rushed back to Mikawa Province guarded by Masanari HATTORI and others after Honnoji Incident. This is called Igagoe (literally, going over Iga).

When the land of Koka went under control of Hideyoshi TOYOTOMI by way of Nobunaga, Koka Ninja began to be ordered a monitoring activity on Ieyasu as main mission. In the consequence, Iga Ninja were assigned the mission to hunt down and kill Koka Ninja. This thing became a subject matter for kodan storytelling or Yomihon (a reader) in form of "Iga Ninja versus Koka Ninja" in Edo period. But in fact it was nothing but an alternative war between Tokugawa and Toyotomi.

Edo Period
In Edo period, the achievement of "Igagoe" mentioned above was appreciated, and they were employed by Edo bakufu as Igagumi doshin (a police constable) under Masanari who is generally known as Hanzo Hattori. For this reason, Masanari is sometimes told as if he was Ninja himself, but Masanari rather seemed to be a warrior who showed a great performance in general battlefields. For the details, refer to the article on Masanari HATTORI.

After the Todo family governed Iga, they were secured their warrior class called musoku, supplied Fuchimai (salary rice), and incorporated into the governing class. For the reason, Iga Ninja were dispatched to a lot of uprising in all over the country for suppression including the putting down war of Amakusa Rebellion and showed a great performance. (Reference; "The Record on Ninja Village, Research on Hometown 10" 〔written by Masatomo ISHIKAWA, published by Suiyo-sya〕)

According to the record on Nakaze-mura Village (present Iga City) (Mie Prefecture) in the New Year's Holidays in 1803, the peasants' side demanded Ninja in social status of musoku to be charged boyaku as well as peasants, but Ninja's side refused it on the pretext of their being in warrior class, which led to their social ostracism.

Ninja's side appealed to a village officer for their discontent, but the village officer's side is said to have told them that they would be served as mediator only if Ninja's side returns to field renouncing their social status of samurai class or accepts to be served as boyaku.

Iga Ninja Museum where exhibits many remnants of Iga School
Iga Ninja Museum where exhibits many remnants of Iga School

Ningu (weapon or an instrument of ninja)

Typical Image of NinjaShinobigatana (Ninja Sword)
Shinobigatana is a sword which is said to be used by ninja and is also called Ninjato. The size and shape of Shinobigatana are designed to improve the portability and functionability compared with Samurai sword “Katana”. Most "Shinobigatana (Ninjato)" currently transmitted have a length between an ordinary Uchigatana and a wakizashi (short sword) and are classified into Nagawakizashi (long wakizashi). It has only slight warpage unique to Japanese swords and the body of the blade is classified into "Straight sword." The sword-guard is large and angular, and the shitao (string) is longer than that of an ordinary samurai sword; the sheath is matted so that it does not glitter when light reflects off its surface, and the tip of the sheath is made of metal, and forms an acute angle. The sword guard of Shinobigatana is large and angular, and it was used as an alternative of a ladder to put foot on it.

Generally, a sward has a piece of string called shitao on the scabbard and the string of Shinobigatana is longer than that of the ordinary sword and the string was used to collect the sword after it was used as an alternative of a ladder of 1 m,. The scabbard of Shinobigatana is coated in black and frosted to prevent reflection and make it inconspicuous. The kojiri at the tip of the scabbard is made of metal and acute angled so that it can be driven into the ground or used as a weapon. Some kojiris are removable and used to contain medicines, etc. and it is said that a cylindrical scabbard was used like a snorkel to hide under water. When they fight in the dark, they locate enemies by hooking the scabbard on the tip of the sword.


Tekko kagi (hand claws)

Tekko Kagi

Kaginawa (hooked rope)


Shikomizue (sword hidden in cane)


Kusarigama (chain and sickle)


Kunai (ninja throwing knives)


Makibishi (spiked caltrops)


Shuriken (throwing blade)

The shape ranges from stick, crisscross to round. Usually, ninja carried one or at most three or four shuriken.

Five colored rice

It was rice colored in red, blue, yellow, black and purple. It was not edible, but used as communication code between other ninja.
Five colored rice

Shuriken (Ninja's Throwing Blades)

ShurikenUnique Japanese Weapon of Ninja's Throwing Blades
A shuriken is a small weapon shaped like a sword or needle, thrown at an opponent to diminish the fighting power of an enemy. They are widely known as a weapon used by ninja. They are also known as token (throwing swords), shuriken (手離剣, or throwing blades), small throwing blades, shooting stars, and small throwing blades.

There had long been methods of escaping danger or hurting an enemy by throwing weapons at them, but the weapons used were tsubute (throwing stones), short swords, uchine (throwing arrows), uchiya (throwing arrows), and needles among other weapons. Short swords and uchine were somewhat costly and unsuitable for repeated use, uchiya were too bulky to bring along, and needles were inexpensive but lacked force. It was in the late Muromachi period that shuriken appeared in the form known today as an affordable weapon specifically for throwing, free of these disadvantages. It is believed that not only the shape, but also the word shuriken became established during this period.

The technique of using shuriken is sometimes included in the Bugei Juhappan (18 skills of martial arts), but unlike swordplay, it could be used for assassination using poison, and thus did not prosper much as a military art performed openly. Since it is a technique where an object at hand can be substituted for toteki (throwing), it can be used today for self-defense.

Shapes of Shuriken Blades

Two Types of Shuriken Blades
Shuriken can be divided broadly into two types, kurumaken (wheel shuriken) and bo shuriken (stick shuriken).

Kurumaken Blades
KurumakenKurumaken have blades placed on a cross-shaped or fylfot-shaped iron plate, and bo shuriken are small sticks made of iron with one or two ends sharpened. Kurumaken stabilize while spinning in the air during toteki, so the accuracy of hitting the target can improve after a relatively short period of training. On the other hand, a disadvantage is that the sound they generate when spinning makes it easier to be noticed by the target, and that it is inconvenient to carry along. Additionally, since it does not pierce deep into the target, it is not effective enough in killing or wounding an enemy, but sometimes such weakness is offset by applying poison to the blade. Copper alloy may be used on the blade for this purpose. According to the number of blades pointing radially, they are called sealed cross blades, roppoken (six-blade shuriken), happoken (eight-blade shuriken), and ten-blade shuriken among other types.

Bo Shuriken Blades
Bo ShurikenThe bo shuriken is a simply-shaped weapon, but the length, and center of gravity among other factors vary according to the school. It overcomes the weaknesses of kurumaken such as regarding portability, the power to kill and wound, and the sound when thrown, but requires a more advanced toteki skill. In order to make it easy to carry, there are pairs of bo shuriken with blades on both sides, secured in the middle like scissors, to close into the shape of a stick when carried and open into a cross when used. The Negishi-ryu school uses a heavy shuriken with the center of gravity at the front, aimed at stabilizing the flight of the weapon, as well as increasing its force. Depending on the practitioner, various things can be used as 'shuriken,' such as the shuriken 'hyo' (also known as Chinese-style), which is shaped like an arrowhead, or unusually heavy and huge shuriken.

Throwing Techniques of Shuriken Blades

Three Styles of Striking Shuriken Blades
The word 'strike' is used instead of 'throw' for shuriken, but writers may use 'throw' in novels out of consideration that it is not a common expression. Additionally, 'striking with a shuriken' is also described as daken (striking knife). As an example, in the case of bo shuriken, there are three major techniques for daken.

The Chokudaho (direct throwing technique)
Position in a way such that the pointed end faces up. This is a method of toteki where after leaving the hand, the pointed end stays directed towards the target during flight. It does not fly straight, but instead flies in an arc as of the slashing movement of a sword.

The Hantendaho (half rotated throwing technique)
This is a method of toteki where the pointed end is held in the opposite direction and the sword is inverted at the moment of striking, flying in the same way as the 'chokudaho.' It strikes in this inverted position and does not spin.

The Kaitendaho (spinning method)
This is a method of toteki where after leaving the hand, the weapon spins until it hits the target. This method of toteki is common for kurumaken and knife throwing in the West, and in the toteki of kurumaken a movement as of spinning a sword is necessary. It is a multiple spinning method used to increase force and improve accuracy. In the case of large sealed cross blades, in one method of toteki one grasps one of the swords with a finger placed on the other sword, and the sword is made to spin by striking it in a hammering motion. Meanwhile, in knife throwing the target is hit by adjusting the speed of the throw and the way it spins and depending on the distance from the target. Among Japanese shuriken techniques, the 'chokudaho' is the most basic way of daken, but it is a unique technique from an international standpoint.

Ninjutsu (Art of Ninja Techniques)


Special art of Ninja Warfare and Martial Art
Ninjutsu is a generic term for techniques used by Ninja (persons in feudal Japan who used ninjutsu for the purposes of espionage, assassination, sabotage, etc.), who were active during the Muromachi Period and the Sengoku Period, to gather intelligence or to destabilize intelligence against the enemy camp and also arts of warfare and martial arts necessary to carry out Ninja's operations.  Ninjutsu includes various martial arts such as swordplay and Jujutsu but equipment (weapons) specific to Ninjutsu is referred to as Ningu or Ninki. Additionally, teachings of some schools of Japanese martial arts included Ninjutsu. 

Iga Ninja excelled in Individual Ninjutsu, while Koga excelled in Group Ninjutsu
ninjutsuTechniques to slip into the enemy camp to gather intelligence are described in Ninjutsu-sho (book of Ninjutsu) such as Mansei (or Bansei) Shukai and Shonin-ki.  Koga school that fought against the Muromachi bakufu (Japanese feudal government headed by a shogun) and Iga School that was famous for Hanzo HATTORI, who was a retainer of Ieyasu TOKUGAWA are well known. The Iga School excelled in individual activities, while the Koga school excelled in group activities. It is said that as many as 49 schools of Ninjutsu used to exist in Japan including “Hagakure”, “Togakure”, “Kumogakure”.

Name of Known Ninjutsu

Gosha no jutsu
It is an art that five verbal skills to control other person psychologically in conversation.

Kisha no jutsu
ninjutsuIt is a skill to praise other person and watch for a chance.

Dosha no jutsu
It is a skill to make other person angry and lose its coolness.

Aisha no jutsu
It is a skill to raise sympathy.

Rakusha no jutsu
It is a skill to make other person envy and lose its will to fight. If circumstances allow, it will be able to gain over the opponent.

Kyosha no jutsu
It is a skill to play on other person's fear by using superstition and so on and make him/her lose its will to fight.

Tonjutsu (ninja art of escape)
ninjutsuIt is a skill to make enemies stuck when ninja runs away from them. In particular, katon (a tonjutsu using fire), suiton (a tonjutsu using water), doton (a tonjutsu using dirt), mokuton (a tonjutsu using tree) and kinton (a tonjutsu using valuable article) are called goton (five tonjutsu).

Chujuton no jutsu
It is an art of tonjutsu using insects and animals

Tenda no jutsu
It is an art to feed the enemy's spy disinformation

Koppo jutsu
It is a martial art with bare hands

Kiai jutsu
It is an ninjutsu art using vital energy

Nin kenjutsu
ninjutsuIt is an art of ninja sword fighting and assassination

Shuriken jutsu
It is an art of ninja shuriken weapon

Ka jutsu
It is an art of ninja fire for attacking and defencing

So jutsu
It is an art of ninja spearmanship

Finger art of Ninjutsu
Finger art of Ninjutsu
Must Visit Spots

For More Information
History of the Ninja -
Ninja - Wikipedia
Hattori Hanzo - Wikipedia
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See Also
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Katana of Japan - The ultimate cutting weapon with soul of samurai
Castle of Japan - Breathtaking Japanese castle design of samurai age
Encyclopedia of Japan