List of Ninja Gaiden characters
This is a list of video game characters in the Ninja Gaiden video game series, the hero of which has been always the ninja Ryu Hayabusa. As the universe of the Ninja Gaiden series has been rebooted as of 2004 with the release of Ninja Gaiden on the Xbox, this list will have two sections, one for the original trilogy on the NES, and another for the 'rebooted' universe since 2004.
The characters and events are described, below, using in-universe tone.
- 1 Ryu Hayabusa
- 2 The NES trilogy
- 3 Ninja Gaiden (2004)
- 4 Ninja Gaiden: Dragon Sword
- 5 Ninja Gaiden II (2008)
- 6 Ninja Gaiden III (2012)
- 7 References
- 8 Bibliography
Ryu Hayabusa (リュウ・ハヤブサ/隼 龍 Hayabusa Ryū?) is the protagonist of the Ninja Gaiden video game series as well as a player character in the Dead or Alive series by Team Ninja and Tecmo. According to the game canon, Ryu (lit. "dragon") Hayabusa ("falcon") is a ninja and the leader of the Hayabusa Clan (隼一族 Hayabusa-ichizoku?) that has spiritual, physical and magical ties to ancient dragons. He is often regarded as the most popular ninja character to be ever featured in video games.
The NES trilogy
The NES trilogy chronicles how Ryu and Irene meet up, and their conflicts with the Jaquio and rogue elements of the CIA.
Irene's first encounter with Ryu is in Ninja Gaiden, where she shoots and captures him with a tranquilizer dart. She gives him the Shadow demon statue, and is later taken hostage by the Jaquio in order to force Ryu to hand over the statue. Although Ryu complies, the Jaquio keeps Irene to be sacrificed, and drops Ryu into a pit. However, Ryu manages to find a way out and defeats the Jaquio, escaping the collapsing temple with Irene. As the two fall in love, Irene disobeys an order from Foster to kill Ryu.
Ken Hayabusa, named Jô Hayabusa (ジョウ・ハヤブサ?) in the Japanese version, is Ryu's father. He appears only in the first NES game, Ninja Gaiden. At the beginning of the story, he engages Bloody Malth in a duel and is defeated. He has left a letter entrusting the family heirloom to his son, Ryu, and telling him to go to America to find Doctor Walter Smith if he fails to return home. Presumed dead, he is later revealed to be alive, under the Jaquio's control as "the masked devil". Ken manages to break free of the spell thanks to Ryu destroying the device controlling his mind. However he sacrifices himself to protect his son, by taking one of the Jaquio's energy bolts aimed at the latter. As the temple collapses from the Demon's defeat, Ken slowly succumbs to his injuries. With his dying breath, Ken tells his son that the time has come to carry on without him, and tells him to be ever brave. Proud of his son, Ken dies in the arms of his distraught son.
Robert T. Sturgeon
Robert T. Sturgeon, is a United States Army Special Forces operative who aids Ryu throughout Ninja Gaiden II: The Dark Sword of Chaos, constantly revealing information about Ashtar. At the start, he informs Ryu of Irene's abduction and whereabouts, setting off the latter's quest. He shadows Ryu, and distracts Ashtar from finishing off Ryu in a sneak attack. After Ashtar is defeated, he escorts Irene while Ryu sets out to a nearby altar. However they are attacked by the Jaquio, and Robert is left injured. He informs Ryu of Irene's capture and makes a stand to hold off the tribesmen of Chaos while Ryu goes off to finish the Jaquio. Robert is last seen mortally wounded, while holding off the demons who're after Ryu. His final fate at the end is not revealed in the game, but he is shown to have survived by his presence in the anime OVA which occurs after the game.
Robert also makes an appearance in the Original Video Animation based on the video game series, again working with Ryu in his battle against evil. He also makes a short cameo in Ninja Gaiden 3 (2012) as a pilot who helps Ryu jump onto another jet in midair before wishing him good luck.
The Jaquio and the Malice Four
The Jaquio (邪鬼王 Jakiō?, lit. "Wicked Demon King"; Jaquió is also archaic Spanish for "he has left") is the name taken on by Guardia de Mieux. He is the antagonist for the first two NES games, and is served by the Malice Four in the first game. His title is translated as the Devildoer for the PC Engine version of the first game.
In Ninja Gaiden, he seeks to acquire the two demon statues which the evil power of the Demon was confined in. He plans to bring the Demon to this world with the statues, thereby gaining enough power to control the world. His minions steals the Light demon statue from Walter Smith, and Ryu is forced to hand over the Shadow demon statue. However the Jaquio is unable to personally witness the fulfillment of his dream as he dies at the hands of Ryu before the Demon is brought back to the world.
After being slain by Ryu in Ninja Gaiden, the also deposed spirit of the demon statues which Jaquio had been attempting to unleash flowed into his corpse in the finale of Ninja Gaiden, possessing and reanimating Jaquio's carcass for one final confrontation with Ryu—a battle that would not occur until the denouement of Ninja Gaiden II: The Dark Sword of Chaos one year later—and intends to use Irene's soul to lure the demons out of the dark world while Ryu's soul opens the Gate of Darkness. However, Ryu defeats him, and the Jaquio's blood ironically becomes the trigger to open the Gate by awakening the Sword. The enormous power pouring out of the gate also revives and transforms the Jaquio into a monster. Even in this transformed enraged state, he is defeated by Ryu.
The Jaquio's evil network is controlled by his hand-picked Malice Four: Barbarian, Bomberhead, Basaquer and Bloody Malth. The Barbarian is an armored axeman slow in both mind and body, while Bomberhead was recruited for his control of the streets of New York. Basaquer is a totally ruthless, deadly fighter who tends to stay in the air. Malth, their leader, is the only Malice Four who plays a part in the story. He is the one who defeated Ken Hayabusa at the start of the game, and reveals to Ryu that Ken is still alive and will be the last thing Ryu ever sees if he goes on.
Ashtar and the Chaos Tribesmen
Ashtar, the Emperor of Darkness (兇魔天帝アシュター Kyōma Tentei Ashutā?, lit. "Cruel Demon Divine Emperor Ashtar"), appears to be the antagonist of Ninja Gaiden II: The Dark Sword of Chaos and to have been the mastermind behind the events of the first game. He is the leader of a demonic tribe from the world of Chaos, and wields the titular Sword of Chaos, which is claimed to have been grown from the bone of the Demon. Ashtar plans to open the Gate of Darkness to the world of Chaos, thereby inheriting enough power to rule the world. This requires him to kill someone with an immortal bloodline which turns out to be Ryu. To achieve this, he intends first power up his Sword with souls including Irene's, and then kill Ryu to open the Gate. However, he underestimates Ryu and is defeated by him.
Ashtar sends several of his Chaos Tribesmen against Ryu throughout the game. Among them there is Dando (ダムド?), who is a combination of the spirits of Vikings lost at sea, and the lizard Funky Dynamite are creations of his sorcery. Dynamite is further enhanced by cybernetics that give it flight and attacks with missiles. Naga Sotuva is a dinosaur, twisted by Chaos to become a nightmarish creature. Baron Spider (クモ男爵?), the leader of the Chaos Tribesmen is a reject of society picked up by Ashtar. Through a laboratory accident, he became a half-man, half-spider mutant, and is able to summon giant tarantulas.
A. Foster holds a powerful position in the CIA's Secret Auxiliary Unit and is Irene's immediate boss. In Ninja Gaiden, he coerces Ryu to retrieve the demon statues and to help in defeating the Jacquio's forces. However, he later reveals his true intentions after the Jaquio's defeat when he orders Irene to kill Ryu and bring the statues to him. He returns in Ninja Gaiden III: The Ancient Ship of Doom as a conspirator behind the "Biohazard" plan, his goal being to create a race of super beings. Although he was named as the one responsible for Irene's death, he is unaware of doing so. He is interested in creating a BIO-NOID out of Ryu's body to improve the project. However he is betrayed by his co-conspirator, Clancy who makes use of Ryu to get rid of him. Foster is ripped to pieces by raw energy as he tries to follow Clancy into the subspace.
H.P. Clancy is a young man who works closely with Foster during Ninja Gaiden III: The Ancient Ship of Doom. Both men are responsible for building Castle Rock Fortress, over the ruins of the Jaquio's fallen temple. After the Demon died, a continuous supply of life energy is found within the ruins. When Clancy and Foster discovered this, they built the fortress to harvest the life energy as an energy source, and used it on humans for experiments. Clancy soon betrays Foster, desiring for total control of the ruins. He lures Ryu into coming and defeating Foster, thereby achieving his aim. Clancy reveals there is a dimensional warship inside the ruins, which he intends to use to destroy the world and reshape it as he sees fit. He expresses hatred toward humanity, and their warlike tendencies. In the end, he merges with the warship but is still defeated by Ryu.
Foster and Clancy have created BIO-NOIDs by infusing life energy into experiment subjects, thereby creating super-humans. The four great beasts are BIO-NOIDs designed after the four elements of fire, air, water, and earth, able to attack in ways reflecting those elements.
The Doppelganger is a BIO-NOID who can be considered an antagonist in the story. Imbued with Ryu's appearance and skills, the Doppelganger caused Irene to fall off the cliff at the start of the game. When Ryu first encounters him at the perimeters of Castle Rock fortress, the Doppelganger simply taunts and defeats the latter, sparing him as per Foster's orders. He admits to causing Irene's death and challenges Ryu to meet him within the Fortress. When Ryu reaches Foster, the Doppelganger jumps down to confront him. It transforms itself into a large superhuman beast whose skin is bullet-proof but is of no use against Ryu's sword. The defeated Doppelganger appears again in subspace, and is destroyed by Ryu.
Ninja Gaiden (2004)
The story of the 2004 version of Ninja Gaiden is a prequel to the NES trilogy and is set in the same fictional universe as the Dead or Alive fighting game series as well. Ryu is a ninja whose clan has guarded an evil blade known as the Dark Dragon since man's prehistory. When the blade is stolen, he becomes embroiled in the ages-long battle between good and evil, seeking vengeance against those who destroyed his village and clan. After accomplishing his quest, Ryu begins to rebuild the Hayabusa Ninja Clan.
The Holy Vigoor Emperor
The Holy Vigoor Emperor (神聖皇帝) is the main antagonist of the first game in the relaunch. According to in-game literature, the Emperor is said to be the omniprescent ruler of the Vigoor Empire. He sends Doku and his minions to steal the Dark Dragon Blade from the Hayabusa ninja clan. He intends to unite with the Blade to bring the Fiends to a new level of power. He seals himself off in his own realm with the Blade at the top of his palace. It initially appears as an idyllic, lush plain but dispels away to reveal a hellish volcanic cavern. His first form is enormously tall and angelic in appearance. His second form however is a mountain of skulls on legs. His existence fuels the blood curse of the Fiends, and with his death at Ryu's hands, the curse on Ryu is lifted.
Murai and the Shadow Clan
Murai (ムライ?) is the leader of the Shadow Clan (composed of brown garbed lesser ninjas, and their superiors, the white garbed greater ninjas), and Ryu's uncle from his mother's side. Despite helping Ryu by providing the identity of the Hayabusa village raiders, Murai is actually the mastermind behind the whole ordeal. He intends to let Ryu slaughter thousands to unseal and empower the Dark Dragon Blade with souls. Murai follows Ryu through the Holy Vigoor Empire in his identity as the Dark Disciple (黒使大兄?), wearing a black hat, mask and long robe, altering his voice at the same time. He claims the empowered Dark Dragon Blade for his own at the end. Ryu defeats him, and sends him plummeting down to the deep chasm below. In executing this task, they beset Ryu at every turn of Tairon to prevent him from recovering the Blade. Their expedition forces in Tairon are whittled down to nothing by Ryu and the Fiends at the end of the game, though the player can read the chronicles of their tasks through diaries picked up from their bodies. It is later revealed that the master of the clan has told his minions that he desires the Blade to grind it to brew herbal tea, and one of the fallen ninjas expresses disbelief in this desire.
Marbus (マルバス重鬼卿) is the protector of the Holy Vigoor Emperor and one of the three Greater Fiends. He tries to prevent Ryu from meeting the emperor by summoning out minions against him. He can even resurrect and enhance the power of bosses slain by Ryu. After Ryu overcomes the odds, Marbus takes him on personally, throwing out pillars of flame and summoning Fiends to no avail, and soon meets his demise.
Doku (ドーク重鬼卿) is the Greater Fiend that attacks the Hayabusa village with his samurai horde including the red samurai Masakado (赤武者?), taking away the Dark Dragon Blade while leaving only the dead and flames behind. He is also the Lord of Greater Fiends. When his physical body is defeated by Ryu, he escapes in his spirit form and tries to awaken Alma by sacrificing Rachel who was subdued by the Twin Fiend sisters doing his bidding. The sacrificial ritual is foiled again by Ryu, with even Alma going against Doku. Doku sets up a showdown with Ryu in the labyrinth but is defeated for the last time. With his last breath, he places the blood curse on Ryu, which starts to turn the latter into a Fiend.
Alma (アルマ重鬼卿) is the twin sister of Rachel. She was transformed by Doku into a Greater Fiend through a curse of her blood, but retains her soul. She is defeated by Ryu in the monastery, and left vulnerable. Rachel attempts to kill the weakened Alma, but is unable to force herself to do so. Doku later attempts to awaken her full power with a ritual sacrifice of her sister. The start of the ritual begins to transform her, but Ryu defeats her newly awakened state and rushes off to stop the ritual. Alma at this time regains her mind and outraces Ryu, taking the blow meant for her sister. She reverts to human form in her sister's arms. The two sisters are finally able to look into each other's eyes in human form.
Gamov (ガモフ?) is a bespectacled, green hat and coat wearing spy, who constantly shadows Ryu as the latter ventures through the Holy Vigoor Empire. Throughout the game, he sets up Vigoor military forces against Ryu and observes their battles. He claims to know a lot about Rachel and the Dark Dragon Blade. He has a fight with Rachel in Ninja Gaiden Sigma. Though working in cahoots with the Dark Disciple, he is decapitated by the latter with the Dark Dragon Blade at the end.
According to in-game backstory, Fiends are the results of the mixed bloodlines of the "Ancient Tribes," who were apparently the earliest forms of life on the earth. They possess powers beyond the normal person and are immortal soulless evil beings. As descendants of the ancient twin Fiend sisters, Nicchae (ニケ重鬼卿?) the Goddess of Destruction, and Ishtaros (イシュタロス重鬼卿?), the Goddess of Creation, most of the Fiends exist as humans until they are awakened.
Fiends come in many varieties, the most common of all are the Shadows. They are classed into four types, and are named for their ability to phase into their shadows, moving without fear of damage along the ground. The brown Shadow Fiends (魔神シャドウ?) are the least powerful, their feet fading away into nothingness. The pink Flare Shadows (魔神フレアシャドウ?) are stronger, and named for the flames on top of their head. The Crow Shadows (魔神クロウシャドウ?) have spikes for feet, eyeballs at the major joints of their limbs, and feared for their sliding attacks. The largest Shadows are the one-eyed Ariochs (魔神アリオク?), black-carapaced Fiends taller than a human, and can shoot a laser beam from their single eye.
Among the strongest Fiends are the Dino Fiends (魔神ディノ?), Triceratops skull mask wearing four eyed giants who crushes all with their heavy clubs. The Bast Fiends (魔神キャット?), female humanoid cats, are swift and deadly, pouncing on the slightest mistake. The great sword-wielding Nightmare Fiends (魔神ナイトメア?) exude an aura of might. Able to throw fireballs and lay down exploding runes, they are a menace at all ranges. There are also weak Fiends, like the Girtablilu (水棲魔神ギルタブル?), mermen who can only float around and fire globules of water, and the Phantoms (ファントム?), flaming blue globes which simply charge into their targets. There are Fiends taking on forms of mythical creatures like Paz Zuu (魔神パズ・ズー?) who is an enormous skeletal roc-like Fiend, and several dragon-like Fiends. The two horned Gallas (魔神ガルラ?) stand twice the height of a human, but in terms of strength, they lose out to the beefier Gobdecks (魔神ゴブデック?) who are slightly larger and sport spikes running down their backs. The most powerful dragon-like Fiend is Smaugan, the Lava Dragon (溶岩龍スマウガン?), a boss in this game.
The most sinister Fiends are the Doppelganger Fiends (魔神ドッペルゲンガー?) which can assume and copy the abilities of a warrior just by observation. They can perform almost all of Ryu's attacks, techniques, and even ninpo spells. They typically come dressed as Ryu in his Dragon Muscle Suit - black suit with red veins, a helmet with skeletal ribs over it, and golden blades on each of the forearms. It has also been seen wearing the Dark Dragon suit - totally black with tiny scales, a helmet with the features of a dragon, and a red scarf.
The Vigoor military force comprises MSATs (Mechanized Special Attack Team), MVAPs (the soldiers deployed on motorbikes or sidecars), and their cybernatic equivalents. The MSATs wear the outfits typical of SWAT forces and are the equivalent of rapid deployment forces. They come armed with a variety of knives, pistols, grenade launchers, and rocket launchers. The Vigoor soldiers wear breastplates and helmets with a laser guiding eyepiece. They are equipped with an assault rifle with a bayonet or a rocket launcher. The military's elite have undergone cybernatic enhancements. Vehicle-wise, the military include armoured personnel carriers (APCs), main battle tanks and attack helicopters. There are also the FL-2000 series of mini-copters which can independently fly around and attack with lasers, guns, or rockets. Heading these forces are Generals Dynamo (ダイナモ?) and Alternator (オルタネーター?); the two are large, rotund, cybernatically enhanced men wielding plasma guns.
Ninja Gaiden: Dragon Sword
Obaba is the old leader of the Black Spider Clan. Her objective is to take the Eye of the Dragon away from the Hayabusa Ninja Clan and give it to Ishtaros, the ancient Greater Fiend. First, she sends her ninjas and the Dragon Fiend to kidnap Momiji. Then, as she interrogates her about the whereabouts of the Eye of the Dragon, she realizes that Momiji has fused the jewel into her soul, thus she cannot kill her. During her meeting with Ishtaros, she gives Momiji to her and in exchange, Ishtaros gives her power that is more than she imagined and it transforms her into a powerful Fiend. She is later killed by Ryu.
An Ancient Greater Fiend, Ishtaros seeks to rid the world of the Dragon Lineage. She heavily despises the Lineage and the Hayabusa Ninja Clan. Her true motive is to gather all eight Dragonstones in order to resurrect the Fiends. When she gathers all of the Dragonstones, she becomes more powerful than Ryu; until Ryu receives the Eye of the Dragon that is. She is later killed by him.
Another Ancient Greater Fiend, her mission is to resurrect the Holy Vigoor Emperor and The Fiends and take over the entire world. Nicchae attempts to do so using the Dark Dragon stones fused with Ishtaros, but fails and, after she is defeated by Ryu, is absorbed into the cocoon encasing her sister, accepting her fate.
- Voiced by: Rika Komatsu (Japanese), Tara Strong (Ninja Gaiden Sigma 2), Wendee Lee (Ninja Gaiden 3) (English)
A young Ninja in training of the Hayabusa Ninja Clan. Like the other kids in the village, he looks up to Ryu and aspires to be a Master Ninja just like him. He also looks sees Momiji as an older sister.
Ninja Gaiden II (2008)
The father of Ryu Hayabusa, Jô has returned from training in distant lands to resume his duties as the leader of the Hayabusa Ninja Clan, only to be injured in one of his many battles against the forces of evil. He lays in rest at his home in the Castle of the Dragon, unaware that the evil shadow of the Black Spider Clan slowly descends upon his village. When Ryu arrives in the village after rescuing Sonia, Jô is shown fighting Genshin, the leader of the Black Spider Ninja Clan.
Overlord of the Black Spider Ninja Clan, Genshin's lust for power is matched only by his hatred of Ryu Hayabusa and his bloodline. Hoping to gain an upper hand in the struggle for Ninja superiority, Genshin enters into an uneasy allegiance with the Fiends. He will stop at nothing to destroy Ryu and put an end to this centuries-old feud once and for all. His younger brother was killed by Murai. He was killed in Chapter 17 "Poisoned Blood" after battling Ryu in his resurrected form as a fiend. Genshin is the secondary antagonist of the game.
- Voiced by: Mariko Suzuki (Japanese), Kari Wahlgren (Ninja Gaiden 2), Amanda Troop (Dead or Alive: Dimensions, Ninja Gaiden 3) (English)
She apparently works for the CIA and is looking for Ryu, due to the Archfiend's revival, as well as a demon statue that his clan protects. Sonia informs Ryu on the situation once she is rescued by him, and tells him the Hayabusa Village is in danger because it harbors the demon statue. She is captured by the Fiends on multiple occasions and subsequently rescued by Ryu. Her true identity as Irene Lew was long teased with Itagaki hinting that Sonia may not be her real name. Her identity as Irene Lew was later confirmed when she appeared in Dead or Alive Dimensions.
Ruler of Blood and Queen of the Greater Fiends, Elizébet is the main antagonist of Ninja Gaiden II. She is tasked with retrieving an important ancient artifact from the ancestral village of Ryu Hayabusa, setting into motion a sequence of events that will threaten the very existence of the human race. While initially appearing as a beautiful woman dressed in dark red leather, she later transforms into her true Fiend form—a succubus with butterfly-like wings, a long tail, and a visible spine in place of her belly. Ryu defeats her in Chapter 10 and kills her with the Dragon Sword and Genshin's Sword in after the death of Genshin and he turns solidified, her body turning black and breaking instantly.
Ruler of Storms and one of the Four Greater Fiends, Volf is a vicious warrior who seeks an opponent worthy of himself. His Lycanthrope underlings have taken over the canal-lined streets of the tranquil Aqua Capital, as he sits in his throne in the castle above. He appears as a massive, four-armed werewolf. He was confronted and defeated by Ryu in Volf's Arena and was killed when Ryu came into the underworld and Volf turned completely solidified after his death.
- Voiced by: Takeshi Aono (Ninja Gaiden, Ninja Gaiden 2), Bin Shimada (Ninja Gaiden 3) (Japanese), Michael Bell (Ninja Gaiden), Paul Eiding (Ninja Gaiden 2, Ninja Gaiden 3) (English)
A legendary blacksmith who first appeared in Ninja Gaiden (2004), and then in Ninja Gaiden: Dragon Sword. In the game, he is not just a blacksmith but an accomplished swordsman as well.
One of the Four Greater Fiends and Ruler of Lightning, Alexei attempts to turn New York into a Fiend infested city with torrential storms and lightning. He waits for Ryu perched atop the Statue of Liberty. He is one of the more humanoid Fiends, and is described as "graceful" in the game. He appears as a larger-than-life, almost effeminate man with pale skin, horns, and diaphonous wings. Ryu defeats him in New York and kills him in order to rescue Sonia from his clutches, Alexei then dies, explodes, leaving nothing more than feathers behind.
Ruler of Flames and last of the Four Greater Fiends to be awaken, he claims to have bestowed fire upon the humanity centuries ago. He has a habit of calling humans "apes" and "monkeys". His appearance adheres more closely to the Western image of devils. As such, he has a bat-like form, with red eyes, red skin, large teeth, and leathery wings. Ryu defeats him in Moscow to save the city and encounters him again in the underworld, where Ryu kills him.
Rasetsu is one of the Black Spider ninjas of the Dark Sect. He is one of the commanders of the Black Spider Ninjas and can turn into a big fiend spider like creature with metal blade legs. He is killed in Tokyo, when Ryu tries to rescue Sonia. Gyuki is another of the commanders of the Black Spider Ninja Dark Sect, whose skin colour is different from Rasetsu's.
Originally a human philosopher, Dagra Dai gazed into the eyes of the Archfiend Vazdah, causing him to develop a third eye and become a Fiend himself. Dagra is the second main antagonist of Ninja Gaiden II, now known as the Infernal High Priest, he commands the Four Greater Fiends to retrieve the Demon Statue necessary for his master's resurrection. Initially manifested as a gnarled, bearded old man, he transforms into his true Fiend form upon encountering Ryu. In this form, he retains his humanoid shape, but his skin becomes maggot-like, and he sprouts small tentacles from his head, and four large ones from his back that are wielded as weapons in the subsequent battle. He himself commits suicide when he agrees to sacrifice his life for the Archfiend. Tecmo has recently put a patch that makes it nearly impossible to fight him without having the game crash.
One of the original Archfiends, Vazdah was put into a deep slumber by the Dragons thousands of years ago. Now, the Four Greater Fiends and the Infernal High Priest are attempting to resurrect him. He has two primary forms in the game—a fetal form and a fully resurrected form. His fetal form is a grotesque monstrosity hundreds of feet tall, with eight segmented legs like that of a spider, a long tail, and a skull-like head from which one blood-red eye is hanging out. Vazdah's "mature" form closely resembles that of Zedonius, as he is humanoid, demon-like in appearance, and possesses wings and an affinity for fire. However, Vazdah is many times larger than Zedonius.
Ninja Gaiden III (2012)
- Voiced by: Hiroaki Hirata (Japanese), Jonathan Lipow (English)
Clifford "Cliff" Higgins is introduced as a special scientist working for the Japanese Self Defense Forces. However, at about halfway through the game, it is revealed that he is actually one of the game's antagonists, who secretly works for the Lords of Alchemy.
Mizuki is a JSDF Agent along with her senior partner Ken Ishigami, requesting Ryu Hayabusa's cooperation on assisting against terrorist attacks in London, England. Her niece and later the adopted daughter is named Canna.
Regent of the Mask
- Voiced by: Kenyu Horiuchi (Japanese), James Brinkley (English)
The Regent of the Mask is introduced as Ryu's main rival in the story. At first he is thought to be the main antagonist, but nearing the story's conclusion when his identity is revealed as Theodore Higgins, it turns out he was being used against his will to carry out the LOA's plans. He naturally rebels and aids Ryu toward the end. As Regent of the Mask, he curses Ryu with the "Grip of Murder" after their first duel, but when he returns to his senses (as Theodore), he undoes the "Grip of Murder" in their third (technically fourth) and final duel by sacrificing himself for the greater good.
- "Nintedo Power Strategy Guide: Ninja Gaiden II". Nintendo Power (Volume 15). August 1990.
- Foster: If someone brings the demon back to life, he will gain incredible power... enough to control the entire world. Tecmo (1988-12-09). Ninja Gaiden NES. Tecmo.
- Tecmo (1990-04-06). Ninja Gaiden II: The Dark Sword of Chaos NES. Tecmo.
- The Jaquio: "Her life force shall be used to call up the demons. You shall awaken them, she shall call them back to earth", video game Ninja Gaiden II.
- The Jaquio: "The Sword of Chaos simply sucks up your life force. And when the Sword awakens, the Gate of Darkness shall be thrown open...", video game Ninja Gaiden II.
- Irene: "Ryu! The Sword! The Sword has been awakened by the blood of Jaquio", video game Ninja Gaiden II.
- Ashtar: "The time shall come... When the Gate of Darkness is cast open... All men shall kneel before me... All shall hail me, Ashtar, as their new master!", video game Ninja Gaiden II.
- Ashtar: "To the one who releases Darkness with the immortal blood, he shall receive the Power of the Almighty Evil. The legend shall come true. This earth shall fall into shadow and the demons of evil shall rule forever.", video game Ninja Gaiden II.
- Ryu: "Was Irene here? You! You're the one who... Foster: Hmmm... I don't know what you're talking about. I heard that you killed Irene.", video game Ninja Gaiden III.
- Foster: "Imagine the BIO-NOID I could make by blasting your tough Dragon Clan body with life energy. Instead I'll extract the secret of Dragon Clan from your corpse, then I'll make a superior bio-noid", video game Ninja Gaiden III.
- Clancy: "Call it what you like. I'm not turning these ruins over to anyone", video game Ninja Gaiden III.
- Clancy: "There's an open seam between dimensions that was created when the Demon died. An unlimited supply of LIFE ENERGY is flowing from the seam inside the ruins of the fortress", video game Ninja Gaiden III.
- Foster: "Humans are weak and disgusting little creatures who love to fight. You know they should be wiped out, don't you?", video game Ninja Gaiden III.
- Doppelganger: "Ha ha, I don't just look like you. I've also acquired all of your strengths. Unfortunately, I can't get rid of you just yet, Foster's order. I'll answer your question. I'm the one who eliminated Irene", video game Ninja Gaiden III.
- Mielke, James (2007-11-16). "Previews: Ninja Gaiden 2". 1Up. Retrieved 2008-07-04. Tomonobu Itagaki: "This is a new story starring Ryu Hayabusa. It takes place after Ninja Gaiden 1 for Xbox, and before the timeframe of the old Ninja Gaiden games on the NES."
- Yin-Poole, Wesley (2008-05-22). "Ninja Gaiden 2 Interview". VideoGamer. Retrieved 2008-07-04. Tomonobu Itagaki: "Story chronologically as well, this takes place after the fist Ninja Gaiden for Xbox, then after this, the story for this game from a chronological stand point leads into the old Ninja Gaiden for the NES. I think we have a nice continuity there."
- Luke, Anderson (2008-05-23). "Ninja Gaiden II: Q&A with Tomonobu Itagaki". Gamespot. Retrieved 2008-07-04. Tomonobu Itagaki: "In story chronology as well, this takes place after the first Ninja Gaiden for Xbox and then after the story of this game it leads into the old NES ones, so I think we have a nice continuity there."
- The Emperor, Lord of All Creation: "He controls all, physical and ethereal, regardless of time or place...", Team Ninja (2004-03-02). Ninja Gaiden Xbox. Tecmo.
- Saru's Diary: "I have discovered that the mastermind behind the plot to steal the Dark Dragon Blade is none other than the Holy Vigoor Emperor", video game Xbox Ninja Gaiden.
- The Book of the Future: "After seven days, from the unity of His Majesty with the Dark Dragon once again, we Fiends will be blessed with an exquisite harmony", video game Xbox Ninja Gaiden.
- Murai: "It is a shame that such a sword must go untouched, such power unused... Alas, I am not of the Dragon Lineage. The sword is not of my concern", video game Xbox Ninja Gaiden.
- Taro's Diary: "The blade gripped in the hands of that devil was none other than the Dark Dragon Blade, the artifact that, for 450 years, our Black Spider Clan has been searching for. My brothers, hurry! You must not allow the young Hayabusa to possess that awful power...", video game Xbox Ninja Gaiden.
- Gen's Diary: "While it may be true that the Dark Dragon Blade is formed out of dragon bones, one of the greatest delicacies in the ancient world, our master's plan to grind it up and use it for herbal tea is ridiculous", video game Xbox Ninja Gaiden.
- Rachel: Yes... they are the ones who retain a spirit even after becoming Fiends. There are only three of them, Doku, my sister and another who guards the Emperor", video game Xbox Ninja Gaiden.
- Doku: "... but instead, I shall use you to make her even stronger. It will be your blood, the cursed blood of a twin sister that shall serve to awaken Alma", video game Xbox Ninja Gaiden.
- The Book of the Fiends: "However, in that age of chaos, all of the bloodlines of the Ancient Tribes were mixed and the form and nature of the Ancients have been carried on by us, the Fiends", video game Xbox Ninja Gaiden.
- Rachel: "Fiends are pitiful beings, destined to live forever, slaves to the forces of evil", video game Xbox Ninja Gaiden.
- The History of Vigoor I: "The majority of them are mutations of human beings, existing in a condition of living without a soul due to their corruption by evil...", video game Xbox Ninja Gaiden.
- Rachel: "Then there were the twin Fiend sisters, Nicchae, Fiend of Destruction, and Ishtaros, Fiend of Creation. The bloodline they began invited the awakening of an entire new race of Fiends. Those who have awakened to become Fiends may only find freedom in death." Team Ninja (2007-06-14). Ninja Gaiden Sigma. PlayStation 3. Tecmo.
- Mielke, James (2005-05-13). "Ninja Gaiden Black from 1UP.com". 1UP.com. Retrieved 2007-08-21. Tomonobu Itagaki: Think about it; you will have to fight an enemy version of Ryu Hayabusa, wearing the red and black Dragon Muscle Suit.
- 1UP.com staff (2004-09-0). "Previews: Ninja Gaiden". 1UP.com. Retrieved 2007-09-23.
- Luke, Anderson (2008-05-23). "Ninja Gaiden II: Q&A with Tomonobu Itagaki". Gamespot. Retrieved 2008-07-04. Tomonobu Itagaki: "Maybe some of you will get the reference, but Sonia in NGII, is a CIA agent, and her name in this game is Sonia. But who knows if that is really her true name or not?"
- Staff of Nintendo Power. Nintendo Power Strategy Guide Vol. 2: Ninja Gaiden II (Tokuma Shoten) (15).