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Xsigma
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Sigma in his original form as he appears
in Mega Man Maverick Hunter X.
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"Listen well, X. There are times when we Maverick Hunters cannot afford to hesitate in pulling the trigger. We must become both sword and shield to those who cannot protect themselves - that is our sworn duty. Never forget that!"
―Sigma, as "Commander Sigma", The Day of Σ
"It's not over yet, X! The battle! The angst! The destruction! I will make you understand the true potential of Reploids!"
―Sigma as a Maverick, Mega Man Maverick Hunter X

Sigma (シグマ Shiguma?), formerly referred to as "Commander Sigma", is the main antagonist of the Mega Man X series. He serves as the final boss in all X series games except Mega Man X: Command Mission (where he makes no appearances) and Mega Man X8 (appearing as the final boss if the game is played on easy, and as the penultimate boss if the game is set to normal or hard difficulty, since Lumine is fought on normal or hard).

The first Reploid created by Dr. Cain,[1] Sigma was considered the finest of the Reploids and was the first leader of the Maverick Hunters; peace-keeping Reploids who defend humans against their renegade counterparts. Although he was once honorable, Sigma unexpectedly goes Maverick in the beginning of Mega Man X and rebels against humankind. He defects to the Mavericks and assumes the role of their leader. Under Sigma's command, the Mavericks grow into a legion dedicated to the extermination of the human race. Sigma instigates many of the destructive Maverick Wars, with the Maverick Hunters existing to crush Sigma and his minions.

Although he has been destroyed countless times, Sigma's programming always survives and builds himself a new form, ready to menace the world once again.[2] It is implied that he grows more insidious and vengeful with each transformation, with each successive plan becoming more and more desperate and aggressive. His primary enemies are X, Zero, and more recently, Axl.

History

Before Mega Man X

As the former leader of the Maverick Hunters, Sigma was originally the most advanced Reploid of his time. Dr. Cain implanted the latest circuitry designs into Sigma, which were theoretically supposed to prevent him from going Maverick. He was placed in charge of the 17th Elite Unit of the Maverick Hunters, and led them to victory multiple times.

Zero&Sigma

One day, the Maverick Hunters received reports of an overwhelmingly powerful "Red Maverick" that has destroyed an entire squadron of Hunters (the Gamma unit). While investigating, Sigma, along with his unit, tracked it down to an abandoned laboratory. Sigma then left to confront it alone, in order to prevent other Reploids' deaths at the hands of the Maverick. It is here that Sigma encountered Zero, the last product of Dr. Wily. Zero, having suffered a programming flaw from his creation, was uncontrollable, unleashing wanton destruction wherever he went. Sigma was beaten badly by the maddened Zero, but managed to smash the energy crystal in Zero's helmet. The fight, due to taking place in close proximity to Zero's capsule, which was leaking trace amounts of the Maverick Virus, and the damage they already sustained in the battle, transferred the Maverick Virus directly into Sigma and Zero, infecting them. Zero lost consciousness, and Sigma limped away from the battle, ordering his men to take the body of Zero back for study. The virus had different effects on them: Although the virus corrected the flawed programming in Zero, it began to mutate and adapt to Sigma's own programming, eventually fusing entirely with his mind to form the Sigma Virus, which allowed him to manipulate and control Reploids, bending them to his will. After this, he began to feel that humanity was keeping Reploid potential down, and decided to revolt against humanity.

The Day of Σ

Main article: The Day of Σ

Sigma appears in a short unlockable OVA in the game Mega Man Maverick Hunter X for the PSP entitled "The Day of Σ". It shows the Maverick Hunters prior to the events of the game under Sigma's command, before he ultimately revolts. It should be noted that the events in this OVA coincide more with the canon of Mega Man Maverick Hunter X than with that of the original game.

Mega Man X/Maverick Hunter X

Sigma
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Sigma as he appears in Mega Man X.
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"You say you believe in justice. But that's not true. You've only been led to think that. Nothing more!"
―Sigma, Mega Man Maverick Hunter X

Sigma's advanced circuitry seems to do its job, as he seemingly remains stable for months after the lab incident. He gradually succumbs to the virus inside of him and grows more volatile. Without warning, he leads a mass revolt among the Reploids, declaring total war on humanity, which is seen depicted in The Day of Σ.[4] Many Maverick Hunters follow Sigma out of loyalty, leaving Zero, who by this time was reformed and had become a powerful Maverick Hunter, in charge of the organization. Mega Man X, the last creation of Dr. Light and the base model for every Reploid, decides to join Zero as thanks for saving his life. X and Zero battle through the Maverick regime, and it is X who finally destroys Sigma, who laments X's decision for siding with humanity, feeling that Reploids would have prospered without humanity holding them back.[5] But, though his physical body is scrapped, Sigma's "soul" (the Virus) survives. After the end credits roll, Sigma's face appears on a blue monitor and warns X that he will be back.[6]

  • Sigma will first send his pet, Velguarder, to test X's worthiness, before confronting him wielding a beam saber. Sigma's attacks consist mostly of dashing and wall jumping. He also fires lasers from the crystal in his forehead. After defeating his first form, Sigma's head attaches itself to a canine-like, giant body called Wolf Sigma.[7] This form attacks with claws, electricity, and fire, and can only be damaged by targeting its head. It should also be noted that, in the SNES version, Wolf Sigma is completely immune to the Hadouken.
  • In Mega Man X and its remake Mega Man Maverick Hunter X, it is shown that coupled with his goal to exterminate humanity, Sigma is also obsessed with unleashing X's full potential, believing him to be the future of all Reploids.[8] Besides his actions in the main game, he also effectively acts as Vile's commanding officer in Vile mode, telling him to challenge his lieutenants. After Vile successfully does so, he also invites Vile over to fight him. However, Vile was unable to get the chance to do so after being (barely) defeated by X and Zero.


Mega Man X2

Neo Sigma
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"Fine. If you will not follow me, then I'll watch you die once again!"
—Sigma
See also: Sigma Virus

Just as he promised he would, Sigma returns and assumes leadership of his Maverick forces. He gains a new body with the help of the X-Hunters, a trio of vengeful Mavericks who worship him, and becomes "Neo Sigma". He also oversees the "Unification" plot, which focuses on capturing and re-assembling the remains of Zero, whom he plans to reprogram to kill Mega Man X. But, since X managed to recover all of Zero's remains from the X-Hunters, Sigma was forced to make a copy of Zero's body that was not unlike Zero's Black Zero form; however, Zero arrives and destroys it completely before it could battle with X. Sigma then announces that he "knows Zero's secret", and that he's destined to serve him. It's unknown what exactly this secret is, but the dialogue suggests that it has something to do with Zero being created by Dr. Wily, and the possible origins of the Maverick Virus as Sigma calls him "the last of the Doctor's creations". Sigma attacks in his latest form, armed with clawed knuckles, but X thwarts his plans and destroys him again. This marks the first time Sigma's viral form is seen, as the final boss of the game.[9] Zero is then restored to his rightful place in the Maverick Hunters, and is given command of his own Special 0 Unit.

Mega Man Xtreme

Sigma
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Sigma as he appears in Mega Man Xtreme.
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"Bwah ha ha ha. Your efforts are futile... I will never be defeated! As long as Mavericks exist... As long as evil exists in the minds of humans... I'll come back again and again! X, ZERO... I'll pursue you to the end of the world! Bwah ha ha ha! Farewell! FOR NOW!! Bwah ha ha!"
—Sigma

Sigma uses a hacker named Techno to hack into the Mother Computer of the Maverick Hunter base. Noticeably more confident than previous times, Sigma taunts X after he's beaten the first time and even calls his defeat at the end of Normal Mode merely a retreat. It's only when he's defeated on Hard Mode that he seems to succumb to X. However, he implies in the ending that he'll return as long as not only mavericks still exist, but also as long as humanity retains evil minds.

  • Sigma has the same forms from the first Mega Man X, complete with the same weaknesses. However, Wolf-Sigma can also be damaged by normal buster shots, and can easily be defeated with rapid-fire turned on.


Mega Man X3

Sigma
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"We meet again X... It was easy to corrupt that fool, Doppler. And I would have succeeded if you hadn't interfered. But we are always destined to meet, aren't we X? Let the eternal struggle begin!!"
—Sigma

Sigma resumes his threat when he infects the Reploid scientist Dr. Doppler, who has developed a revolutionary new anti-virus to repel Sigma's influence. Sigma uses him to stage a revolt in Doppler Town, a Utopian city established on the principles of peace.[11] Once Doppler is unmasked as a pawn, Sigma emerges in a heavily-armored form, "Kaiser Sigma" (カイザーシグマ Kaizā Shiguma?).[12] After his defeat for the third time, Sigma's "soul" appears in the form of a wire-frame head, which is identical to the Sigma Virus', and threatens to possess X's body to replace its own. After chasing X through the flaming wreckage of the base, Sigma finally corners him. If Zero did not end up critically wounded at any point during the game, which would have forced him to leave the war to X as he was repaired, Zero appears and utilizes the anti-Virus created by Doppler to erase Sigma for the time being. If Zero did end up critically wounded, including the method by which X receives the Z-Saber, Doppler uses the anti-Virus and sacrifices himself to destroy Sigma's programming.

Mega Man Xtreme 2

Sigma
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Sigma as he appears in Mega Man Xtreme 2.
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"It seems that I underestimated you... The playtime is over... Now I'll bring this to an end..."
—Sigma

In Mega Man Xtreme 2, Sigma appears in Extreme Mode after the defeat of the Soul Erasers Berkana or Gareth (depending on if the player is X or Zero), where it's revealed he was behind the Erasure incident. In a rare instance, he's pleased that X defeated Berkana, claiming she went too far in her greed.

  • Sigma's first form is the same from Mega Man X2, "Neo Sigma", but his second form is Sigma Beast (シグマビースト Shiguma Bīsuto?).[13] The color of his second form is initially orange, but later alternates between blue and red, which can only be damaged by X while he is blue, and by Zero when red. His weak point is the big lion-like face in his chest.


Mega Man X4

Sigma
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"Repliforce are the fools this time! Now, all that's left is to destroy Earth with the very weapon they made!"
—Sigma

Sigma was thought to be suppressed forever after Zero distributed the anti-virus created by Doppler, but he still manages to return. In the introduction of the game, Sigma, assuming a Grim Reaper-like appearance, acts as a double-agent between the Mavericks and Repliforce, a benevolent squadron of Reploids who assist the Maverick Hunters. Sigma's true motive is to conspire against Repliforce and turn it into a rogue enemy.[14] He stages the bombing of the airborne metropolis Sky Lagoon, which plummets to the ground in the opening of the game.

With in-fighting between the Hunters and Repliforce threatening to destroy them both, Sigma increases his influence over the paranoid General of Repliforce. The General, an outspoken advocate of Reploid independence, loses all faith in peace and prepares a satellite laser attack on all humans, which is Sigma's real intention.[15] Fortunately, Mega Man X storms the space weapon and stops the General before he can turn its sights on Earth. In the end, Sigma is revealed as the true mastermind and battles X himself, armed with a new body and a scythe. Despite his defeat at X's hands, he succeeds in part by destroying Repliforce.[16]

  • If the game is played with Zero, Sigma reveals a portion of Zero's past involving their first encounter that possibly made Sigma a Maverick.
  • Interestingly, this is the only game where all of Sigma's audio pre-battle quotes are threats (e.g., "Tremble with terror! YOU ARE FINISHED!", "Prepare to become space dust!", or "Are you ready for your final journey?!"). Also, despite being the final boss, his attack patterns in this game are simpler than some of the other bosses.
  • Sigma's reasons for General and Repliforce to rebel is that humanity and the Maverick Hunters seem to want to destroy anything that isn't fully compliant; this foreshadows Dr. Weil's conception, as the latter gives a similar description of humanity.[17][18]
  • Sigma's grim reaper form is the only time in any X series game were the player cannot progress without using a special weapon; it can only be damaged by X's Rising Fire or Zero's Ryuenjin.


Mega Man X5

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"You'd almost fully evolved to your true self... It's a shame you didn't quite make it, Zero. You had so much potential. Oh well, farewell! Well...it's only you now, X... I will let you live this time. But I won't be so kind next time, and there WILL be a next time! See you soon! You... The strongest Reploid! Bwah ha ha!"
—Sigma
See also: Sigma Head

It is some time before Sigma resurfaces again. During his absence, Sigma traced Zero's origins to Dr. Wily, and hatches a plot to unlock Zero's "true" power — the Zero Virus — inside him. Sigma also adapts his programming to completely overwhelm the anti-virus; the Sigma Virus quickly begins spreading everywhere, turning peaceful machines and Maverick Hunters alike into violent servants of Sigma. The Maverick leader also enlists the help of a Reploid bounty hunter named Dynamo to crash the orbiting space colony Eurasia into the Earth, as well as to hinder the Hunters' plans of stopping the collision.

Sigma's ultimate goal is to mix his own viral code, which is spread across Earth, with the original Zero Virus, and become all-powerful. Sigma hesitates to kill Zero, intending to make him "remember" who he is and revert to his original, intended programming. He fails in this endeavor, and both X and Zero defeat Sigma's new "Final Sigma W" body (which has been possibly powered and/or developed by Dr. Wily, although this may just be speculation). The speculation comes from this quote of Sigma:

"Here I am. You can challenge me at anytime. I have delightful news. I've recently acquired a new partner. He has been very supportive. He seems to have created quite a few robots. And he gave me the toughest body that you will ever see. You got here sooner than I expected, so it is not yet complete... But...it is enough to defeat you... He is an excellent partner... I believe you two know each other... In fact, he used to be a comrade of yours. He was very persistent about you... and that makes him very helpful to me. You see X, there is someone other than me...who hates you... Now feel our combined rage and die! ...But not before suffering horribly, hahaha! ...Goodbye, X!"

In the aftermath of the battle, Zero's severed torso lies dormant on the floor. X picks Zero up and tries to get him to respond. The remains of Sigma's head lying nearby suddenly become active and fire an energy laser directly at X and Zero, hitting both of them in the chest. As Zero's body falls from X's grasp, he manages to fire one last blast from his Z-Buster and finishes Sigma. X is critically wounded in the battle, both from the battle itself and Sigma's final attack (the force of the laser being so strong that it ripped through his body and destroyed his entire lower half and arms), but he is eventually repaired (the cutscene suggesting that it may have been by Dr. Light) and returned to the Hunters.

Mega Man X6

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"Bha ha ha ha! Not Yet! THE BADDLE HAZ JUSD BEGUNN! DIE! XXX! JUSDIE, X!"
—Sigma

Three weeks pass as the human population moves underground to survive the devastation and pollution left by Sigma's last attack. Sigma himself is quickly resurrected by a renegade Reploid scientist, Gate, who was angry at the scientific community for rejecting his advanced Reploid designs. Gate becomes a Maverick after coming into contact with a piece of rubble that contains signatures of the Zero Virus. He then uncovers Sigma's remains, and proceeds to rebuild him. However, due to the stress of spreading the Sigma Virus during Mega Man X5's "Colony Incident", Sigma's programming is damaged beyond what Gate can repair, and he is reduced to a half-conscious and barely-functioning wreck of his former self. Gate's work on Sigma's new body is unfinished by the time X or Zero confronts him at the end of the game. Although it seems as though Gate rebuilt Sigma merely as a backup plan to further his own goals, Sigma is quick to finish him off after X or Zero finally defeat Gate in battle, stating: "Oh please, I did not die, nor did I need your help. Now get lost!". Along with his final lines before being destroyed, this is the only instance in Mega Man X6 in which Sigma speaks coherently. He seems to remember little more than his rage toward X and Zero and speaks in a garbled voice.

  • While the player only fights this "reborn" form of Sigma in Mega Man X6, a similar-looking one appears in the ending cinematic for Mega Man X7, as well as various cutscenes with Sigma and Red (this implies that Sigma may have been stuck in a worn down version of his body thanks to Gate).


Mega Man X7

The Professor/Sigma
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Head shot of Sigma's first form.
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"That's right, folks! I'll do it again, and AGAIN! I will make X AND Zero MINE! Now, come and get me! Give me a good fight, like you always do!"
—Sigma

Sigma reappears yet again, under the alias of "The Professor", to manipulate the Maverick hunting organization known as Red Alert. His plan was to use a mysterious young Reploid named Axl to copy the D.N.A. signatures of X and Zero and implant them into destructive war machines. The plan fails when Axl flees Red Alert and seeks asylum with the Maverick Hunters.

This prompts Sigma to find a way to bring Axl back into the Red Alert group. He secretly infected the eight Red Alert generals, blackmailing Red into following his orders and causing Maverick uprisings to draw in the Hunters' attention so that they could infiltrate the Crimson Palace. There, the Hunters confront Red, and upon being defeated he regrets being used by "The Professor" and sets part of the building to self-destruct, seemingly killing himself in the process.

Afterwards, the Hunters confronted Sigma, and once defeated, a reborn Sigma (who appears similar to his first form in Mega Man X6) punches Axl through a wall before vowing to X and Zero to again return in a new body.

Red, who had been defeated earlier and presumably killed, reappears, and Sigma attempts to possess him. Red is then revealed to be Axl taking on Red's form, who then proceeds to blast Sigma out of a window.

Unusually for most games in the X series, Sigma is not actually identified by name, even when he reveals himself.

Mega Man X8

Sigma
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Sigma's final form in Mega Man X8.
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"Your dedication to what you refer to as "justice" is what first got me thinking... I realized the imperfection of this world, and decided I must change it."
—Sigma

Sigma's next plot was very complex, and it wasn't even him behind the entire scheme. It turned out that Axl was a prototype for a new generation of Reploids. These next generation Reploids possessed advanced copy abilities, and Alia discovered that the copy chips bore copies of Sigma's program among other powerful Reploids. Sigma instigated a new Maverick revolt with these new Reploids as the humans were evacuating Earth in hopes of finding a new home on the Moon. However, the revolt was stopped, Sigma was completely devastated, and the real mastermind, Lumine, the manager of the Jakob Project, was revealed and beaten. Before his death, Lumine made a startling claim: according to Lumine, Sigma was destroyed for good and not returning.

It is believed that the reason Sigma would not regenerate within another body after his final defeat is that he was on the Moon, where due to the lack of available bodies to possess, the virus might have weakened in the vastness of space and got completely deleted (although he was also defeated in space in Mega Man X4, however, that time it was on a large satellite; and the fact that Sigma didn't seem frustrated about this defeat implying that he could escape). There was also a lack of spare bodies, and his last body was hardly finished. However, his DNA is included in every copy chip of all the next generation Reploids so, technically, all New Generation Reploids are "infected" with the Sigma Virus, and possibly Lumine as well; meaning Sigma may return one day.

Other games

  • In Rockman Xover, Sigma, along with Dr. Wily and other villains from other Mega Man series, join forces to wreak havoc. He is the boss from World 2 and appears in Battle Memory.
  • Sigma appears in Street Fighter x All Capcom.
  • Sigma, with his appearance from Mega Man X4, is one of Chuck Greene's costumes in the Dead Rising 3 DLC mode "Super Ultra Dead Rising 3 Arcade Remix Hyper Edition EX Plus α". He attacks with his scythe and laser eye, and has a special attack called "Sigma Crusher".

Appearance

Although Sigma has taken many drastically diverse forms throughout the X series, his humanoid design remains fairly consistent. He appears as a tall, intimidating humanoid Reploid and being one of the few in the series to not wear a helmet or headpiece of any kind, showing off his bald cranium and lack of eyebrows. His facial features suggest the appearance of a middle-aged man, with a large square chin and small, blue eyes, and a small red jewel embedded in his forehead. His face also features a pair of scar-like marks run down both eyes, resembling a snake bite. How he got these scars vary: either from his first scuffle with a Maverick Zero, depicted in an animated flashback in Mega Man X4, where he was severely damaged, as shown in The Day of Σ, where X in a fit of rage, burned the scars into Sigma's face with his bare hand, or in the manga version of the story where he burned the scars into his face with his own hands as a sign of rebellion. However, no matter what form he takes, Sigma always retains his head's initial appearance, making him easily recognizable.

Personality

Sigma was originally an honorable and selfless leader of the Maverick Hunters, but after his corruption, he became a power-hungry tyrant, although even then, he also genuinely believed that he was doing what was in the best interests of the Reploids. He typically looks down on others and does not hesitate to kill the weak, laughing maniacally at their expense. His previous "protection through aggression" philosophy has mutated following his infection into a huge Darwinism complex, believing that anything that is too weak to progress should be annihilated, a la natural selection. Following his defeat, his further descent into madness transcended death, trying to hold onto any grip in the living world, in any form possible, consumed by the lingering thought of killing X. Amidst his madness, Sigma is a calculating and intelligent individual, and on more than one occasion, turned allies of X and Zero against them, and instigated many of the most destructive events of the Maverick Wars, including the Earth Crisis. Sigma is obsessed with Reploid evolution and superiority, and believes humanity has run its course. Despite his hatred for X and Zero, Sigma once believed they were the future of all Reploids, and would lead them all into a new age. In addition, he also credited X's dedication to justice, as well as his being infected with Zero's virus, as being his primary motivation in his going Maverick, including what ultimately turned out to be his final battle on the Moon.

Abilities

As the former leader of the Maverick Hunters, Sigma is a capable military leader, described as possessing overwhelming combat power and strategic intelligence. When he turned Maverick, Sigma remains a charismatic leader, and is revived on many occasions by Reploid and Maverick admirers alike. Due to the virus in his circuits, he can survive seemingly anything and always return for more. He is a very powerful Reploid, and is fond of incorporating himself into battle suits which are vastly larger and more powerful than his "regular" form. Sigma is also a skilled manipulator, managing to turn various Reploids, Maverick Hunters, and Mavericks to his side. In fact, there were few instances in the entire series where Sigma wasn't pulling the strings. Sigma himself is one of the strongest Reploids ever created, due to his original role as leader of the Maverick Hunters. His personal energy has been stated to be too powerful to even get an accurate reading. In addition, Sigma's combat skills and analytical abilities were extensive enough that he was able to wipe out several reploids in an efficient manner, as Zero noted when investigating the crime scenes on the days leading to Sigma's revolt.

Sigma is capable of moving at great speed, often able to move faster than the hero can follow, vanishing from sight. Many of his bodies are also capable of teleportation. Sigma seems to favor saber and beam sword weaponry, often integrating powerful sword combos with his blinding speed or teleportation. On several occasions, he projects energy barriers around himself to block incoming attacks. In nearly every appearance, Sigma is capable of discharging enormous destructive blasts or waves of power capable of covering entire battle areas. Sigma's physical strength is considerable. In his first body, during a conflict with the original Maverick Zero, he was able to effortlessly break through Zero's defenses with a round kick, as well as easily toss Zero through the ceiling with a single hand. He has also demonstrated the ability to scale a skyscraper with a single leap.

Sometime prior to Sigma's first defeat at the hands of Mega Man X, his reploid soul became intermingled with the dangerous Maverick Virus and formed the Sigma Virus. This allowed Sigma's spirit to remain after his body was destroyed, granting him immortality and the ability to return after the destruction of each subsequent body. The Sigma Virus possesses the ability to travel through any material or energy and can manipulate both reploid and organic hosts, even on a planetary scale. Its intangibility allows it to ignore physical assaults and energy attacks, except for those tuned with a Virus Buster to target the Sigma Virus's unique matrix. No solution for the Virus remained ultimately effective during 21XX-22XX, as Sigma demonstrated the ability to adapt to any countermeasure. As the cause of death and suffering for countless innocent lives, Sigma is one of the most dangerous villains in the Classic Mega Man Universe.

Other media

Mega Man (Ruby-Spears)

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Sigma in the Mega Man cartoon show.

Though not a starring character, Sigma was referred to in the episode Mega X of the Mega Man cartoon, where X, Vile and Spark Mandrill go back in time. His profile, shown by X, mistakenly spells his name as Cigma. The only line Sigma has is when Vile contacts him near the end of the episode — a short praise: "Well done, Vile."

Rockman X

Sigma starts a rebellion against humans, beginning by killing a Maverick Hunter, Kyle, that was against him, and convincing various Hunters to join him by saying that Reploids are superior to humans and they should no longer take orders from them.

When Spark Mandrill was giving up the fight against X with fear and saying he would tell all of Sigma's plans to him, Sigma uses a giant hologram of himself (via a flying mechanism) to kill Spark Mandrill and talks with X. Before the fight against Armored Armadillo, it's shown that Sigma scarred Armadillo's left eye because he didn't follow his orders to defeat X in the forest. After defeating the eight Mavericks, Sigma appears and challenges X to fight him in his fortress. Although the battle is difficult, X manages to defeat Sigma. Sigma than uses a giant body that is too powerful for X, but he manages to destroy him by crashing his fortress.

In Rockman X2, Sigma is shown to have survived the event, and starts working on a more powerful body. Still, after the defeat of eight Mavericks and the X-Hunters, Sigma is defeated by X and Zero.

In Rockman X3, Sigma took control over Dr. Doppler to start another Maverick uprising, using him to infect several Reploids with "Worms" and create a more powerful body by analyzing X and Zero. He has a fierce battle against X, but he is eventually defeated. However, he reveals a more powerful body, Kaizer Sigma, and manages to destroy X. For Sigma's surprise, X regenerates and his armor became golden, and he uses his new power to destroy Sigma.

Sigma only has a cameo appearance in the Rockman X4 manga, being mentioned by Double in the last chapter.

Irregular Hunter Rockman X

Sigma appears as the leader of the Maverick Hunters. When Storm Eagle challenges X to a fight, Sigma appears and stops Storm Eagle without destroying him, giving him a lecture and the Storm Tornado to X. However, when Zero starts acting strangely, Sigma tells Armored Armadillo that Zero became a Maverick and orders him to destroy Zero. Later, Vile escapes from his cell and takes four Hunters to work for him. After the defeat of the four Hunters, Sigma orders X to go after Zero and destroy him, but Zero reveals Sigma's involvement in the events and they are attacked by Vile, Storm Eagle, Armored Armadillo, and Boomer Kuwanger. After the defeat of the later three, Vile escapes and Sigma decides to destroy the base of the Maverick Hunters. After talking with A-1, X and Zero go after Sigma, who started attacking the city with several Mechaniloids. Sigma appears to face the two Hunters, but after being hit by two charge shots at the same time, He calls Vile and shows that they took A-1 as hostage, taking advantage over X. Unable to see X taking so many hits, A-1 releases himself and runs to Sigma, self-destructing near him. Sigma is stunned by the explosion, and X, angry and sad for A-1, fires a large charge shot, and Zero also fires one at the same time, but Vile saves Sigma and they escape. While leaving, Sigma tells them that he will surely conquer the world.

Mega Man (Archie Comics)

Sigma appeared in issue 35's story "The X Factor Part 2," where he was the leader of the Maverick Hunters for two months, and also has a talk with X regarding the possibility of joining them. In Issue 39, he appears again after the Wily Walker goes on a rampage, dispatching Zero and Vile's Hunter companies to challenge the Walker while he goes to Dr. Cain for information. Upon learning where on the Walker its chemical weapons are located, Sigma joins his two subordinates and X in confronting the weapons platform, unaware that the addition of his presence prompts the Wily Walker to ready its chemical weapons payload.

Short Circuits

Sigma also appears in several Short Circuits, beginning in issue 35 where Mega Man X offered to trade him for Mega Man's nemesis of Dr. Wily after his counterpart complained that Dr. Wily was the worst person he ever encountered. Upon seeing Sigma, Mega Man immediately took back his complaints about Dr. Wily. He returned for Issue 39's strip, where he extolled his pet Velguarder as a robot dog superior to Rush and Treble.

Dialogues from Mega Man X8

When Encountering Copy Sigma (at Gateway)

X: Sigma!?

Copy Sigma: I shall allow you to call me by that name, for I am indeed Sigma.

X: You plan to take revenge on every Reploid... Every human... In the entire world? You're completely mad! I'm putting a stop to this right now!

Copy Sigma: Put a stop to what? We already control the moon. That old world has decayed and rotted. I will usher in a new world to replace it! But, before that, X, perhaps it's time for our final showdown!

Zero: Sigma!? Can't say I was looking forward to seeing you again.

Copy Sigma: Zero. What a shame... You had the abilities and potential to become like me.

Zero: You... you tried to use my DNA. I'll teach you what happens when you mess with me!

Copy Sigma: I'm afraid not. The moon is under my control and the plan is entering its final stage. The moment of the world's unraveling is upon us!

Axl: Sigma!? Did you think you could keep us away by running and hiding in space like a coward?

Copy Sigma: Run? Hide? You're mistaken. We merely chose to leave that ignorant planet behind.

Axl: Whatever you say. Either way, I'm gonna toast you right now!

Copy Sigma: Which one of us will be "toasted?" Let us see... You are not one of the chosen. Only we new Reploids may live in this new world! I've no use for flimsy prototypes!


When Encountering the Real Sigma (at Sigma Palace)

Sigma: Welcome, Maverick Hunter. It's good to see you again, X. Our meeting was fated, X. Our destinies come to a head right here, right now. The time has come to usher in a new age. And you, X, are an essential part of it.

X: .........

Sigma: Your dedication to what you refer to as "justice" is what first got me thinking... I realized the imperfection of this world, and decided I must change it.

X: Don't blame me for your insanity, Sigma!

Sigma: Ha ha ha... It's too late, X. The gears are in motion. There's no turning back now. My children were the ones, X. The new generation Reploids were the ones. My children are responsible for the development of space. Mankind's lifeline...

X: Children!? What are you talking about?

Sigma: The Jakob Project... The program that gave birth to the new generation Reploids... It was all my doing! The world that was birthed by that plan rightfully belongs to me! Now, X... You will be destroyed along with the rest of this decayed world!

Sigma: Zero... Who could have imagined that we'd cross paths at the end of the world. The moment your virus entered my system, the seed had been planted. That's when it all began... The destruction of the world!"

Zero: I've heard about enough of this garbage, Sigma.

Sigma: Don't get angry, Zero. I'm actually indebted to you. It is because of you that my children are able to create this magnificent new world in space.

Zero: Children? .........

Sigma: That's right. The new generation Reploids born of the Jakob Project all bear copy chips containing my personal data. Now, the end of the world, and of you, has come! Farewell!

Sigma: Hmpf. So you must be the one they call Axl... The prototype of the new Reploids. I'm surprised you've made it this far.

Axl: Hey... Stop calling me a prototype. I'm me. And you... You're a Maverick.

Sigma: You are a puny and weak prototype! Nothing more! Your copy ability is far from developed. That's why you were left out.

Axl: The Mavericks are one club I'd prefer to be left out of!

Sigma: Only the pure new generation Reploids - my children - are worthy!

Axl: Your children?

Sigma: Yes, prototype... My children. The new generation Reploids born of the Jakob Project all bear copy chips containing my personal data. And now, the final phase of that project begins! You shall be destroyed!


When Grasped by Sigma (as X)

(X engages Sigma in battle, but is almost beaten halfway through the fight. Sigma grabs X by the face and holds him above his head.)

Sigma: Wallow in despair and hopelessness! The plan to destroy the world you so love is finally coming to fruition! I shed no tears for you and your kind! Ha ha ha ha ha! It will all be over soon!

(X struggles to speak.)

X: Even if you were behind the Jakob Project... I won't give up until I've put a stop to your evil scheme!

(Sigma continues to choke X, when suddenly, Zero arrives and slashes at Sigma, in turn freeing X.)

Zero: Hey, am I late?

X: Zero! Are you alright?

Zero: Don't worry about me. We've got business to take care of here.

Sigma: Ha ha ha... What's this? Your friends arrived, eh? No matter! You are powerless in the face of the ruler of the new world! Powerless!

(X engages Sigma in battle, but is almost beaten halfway through the fight. Sigma grabs X by the face and holds him above his head.)

Sigma: Wallow in despair and hopelessness! The plan to destroy the world you so love is finally coming to fruition! I shed no tears for you and your kind! Ha ha ha ha ha! It will all be over soon!

(X struggles to speak.)

X: Even if you were behind the Jakob Project... I won't give up until I've put a stop to your evil scheme!

(Sigma continues to choke X, when suddenly, Axl arrives and blasts Sigma, in turn freeing X.)

Axl: Hey! I'm here!

X: Axl!

Axl: The gang's all here, huh X? Well, let's go mop the floor with that evil scum!

Sigma: Ha ha ha... What's this? Your friends arrived, eh? No matter! You are powerless in the face of the ruler of the new world! Powerless!


When Grasped by Sigma (as Zero)

(Zero engages Sigma in battle, but is almost beaten halfway through the fight. Sigma grabs Zero by the face and holds him above his head.)

Sigma: Wallow in despair and hopelessness! The plan to destroy the world you so love is finally coming to fruition! I shed no tears for you and your kind! Ha ha ha ha ha! It will all be over soon!

(Zero struggles to speak.)

Zero: Sigma! As long as I still function, you won't get your happy ending!

(Sigma continues to choke Zero, when suddenly, X arrives and blasts Sigma, in turn freeing Zero.)

X: Zero! Are you alright?

Zero: X, you're OK!

X: I'm just glad I made it in time. Let's go!

Sigma: Ha ha ha... What's this? Your friends arrived, eh? No matter! You are powerless in the face of the ruler of the new world! Powerless!

(Zero engages Sigma in battle, but is almost beaten halfway through the fight. Sigma grabs Zero by the face and holds him above his head.)

Sigma: Wallow in despair and hopelessness! The plan to destroy the world you so love is finally coming to fruition! I shed no tears for you and your kind! Ha ha ha ha ha! It will all be over soon!

(Zero struggles to speak.)

Zero: Sigma! As long as I still function, you won't get your happy ending!

(Sigma continues to choke Zero, when suddenly, Axl arrives and blasts Sigma, in turn freeing Zero.)

Axl: Hey! It's me, Axl!

Zero: Axl!

Axl: Looks like I've made it in time. What do you think of me now, Zero?

Sigma: Ha ha ha... What's this? Your friends arrived, eh? No matter! You are powerless in the face of the ruler of the new world! Powerless!


When Grasped by Sigma (as Axl)

(Axl engages Sigma in battle, but is almost beaten halfway through the fight. Sigma grabs Axl by the face and holds him above his head.)

Sigma: Wallow in despair and hopelessness! The plan to destroy the world you so love is finally coming to fruition! I shed no tears for you and your kind! Ha ha ha ha ha! It will all be over soon!

(Axl struggles to speak.)

Axl: Ha! If I give up now, all my efforts would be wasted. I refuse to give up!

(Sigma continues to choke Axl, when suddenly, X arrives and blasts Sigma, in turn freeing Axl.)

X: Axl! Are you OK?

Axl: X! So you made it, too...

X: There's no time to lose! Let's finish this!

Sigma: Ha ha ha... What's this? Your friends arrived, eh? No matter! You are powerless in the face of the ruler of the new world! Powerless!

(Axl engages Sigma in battle, but is almost beaten halfway through the fight. Sigma grabs Axl by the face and holds him above his head.)

Sigma: Wallow in despair and hopelessness! The plan to destroy the world you so love is finally coming to fruition! I shed no tears for you and your kind! Ha ha ha ha ha! It will all be over soon!

(Axl struggles to speak.)

Axl: Ha! If I give up now, all my efforts would be wasted. I refuse to give up!

(Sigma continues to choke Axl, when suddenly, Zero arrives and slashes at Sigma, in turn freeing Axl.)

Zero: Looks like I made it in time.

Axl: Zero! You made it!

Zero: Well, I couldn't leave the whole thing up to you, could I? C'mon... Let's go.

Sigma: Ha ha ha... What's this? Your friends arrived, eh? No matter! You are powerless in the face of the ruler of the new world! Powerless!


See also

Gallery

Videos

Trivia

EarlyXHunterConcept

Early designs that served as the basis for Sigma, and later the X-Hunters.

  • Interestingly, Sigma was designed by merging a team of three other early villain designs created by Inafune during the early development of the first Mega Man X game. The same designs were later used again as the basis for the X-Hunters in Mega Man X2.[21]
  • His appearance has a close similarity to both M. Bison and Sagat, both of whom are major villains of the Street Fighter series and both of whom were designed by Keiji Inafune.
  • During a 2008 question and answer session, Keiji Inafune stated that Sigma (and Zero) represents the idea that nothing is absolute.[22]
  • Sigma (Σ) is the 18th letter of the Greek alphabet, and is used in mathematics to denote series, finite or infinite sums of variables. The Σ symbol is often seen on Mavericks from Sigma's army. Interestingly, the Sigma (Σ) letter was originated from the Phoenician letter Sheen (W), which is similar to the English letter "W".
  • There are three variations on the way Sigma got the scars on his eyes:
  1. Zero damaged Sigma's face when they fought (as shown in an animated cutscene in X4).
  2. X damaged his face in The Day of Σ. Ironically, after Sigma's head merges with the wolf robot in the game, his face resembles his face deformity received against Maverick Zero.
  3. Sigma did it himself after going Maverick in the manga, by using the heat of the "weapon" (his fingers) he used to shoot Kyle to make the scars.
  • Sigma is called "Cigma" in the Mega Man cartoon series.
  • Sigma's viral form from X8 bears a slight resemblance to Abyss (first form) from Marvel vs. Capcom 2.
  • Sigma's normal form in Mega Man X8 is a redesign of his armor from the first Mega Man X.
    • Also, Sigma's "scars" in Mega Man X8 do not really look like scars, rather just lines running down his face.
  • If Sigma's name is entered as the player's name in Mega Man 9, the game will say that it is "inappropriate language", and changes it to "Si**a".
  • In Mega Man X8, the copy of Sigma is weak against Dark Mantis' weapon, while the real Sigma is weak against Optic Sunflower's weapon. Both weapons are based on darkness and light, respectively.
  • In the Ruby Spears Mega Man episode, "The Mega X", Mega Man X mentions to Dr.Light that the lightanium is worth billions in the future, which can fund Sigma's rebellion. This creates some confusion as to why Sigma ever needed funds, as he shows to not have any necessity to have funds for anything.
  • Oddly, only the first and third Mega Man X games have official artwork for both of Sigma's forms.
  • In the original Mega Man X, Sigma berates X as he realized why Zero counted on him, while in the remake, he does no such thing, but commends X's ability to finally reach him.
  • While Sigma does not appear directly in Project X Zone at all, he was mentioned briefly by name in Chapter 20, the same chapter X and Zero officially join the party. 
  • In the original Mega Man X, Wolf Sigma has floating hands. In Maverick Hunter X, however, Wolf Sigma has arms and hands.

References

  1. Mega Man Xtreme Walk-trough (ロックマン X サイバーミッション 完全攻略 ガイド, Rokkuman X Saibaa Misshon Kanzen Kouryaku Gaido) According to this guide released by Haoh Magazine (Haoh Game Special 185), if you exclude X and Zero as Repliroids, Sigma, whom Dr. Cain created, was the first Repliroid. Compendium of Rockman X
    Using the data from the blue robot called X as his base, Dr. Cain manufactures Sigma. A robot born with the highest abilities, without comparison from all prior robots. The general term for that robot became known as "repliroid."
  2. Mega Man Homepage - X Characters. Retrieved on 2006-August 6.
  3. "I did D-REX and Wolf Sigma. I designed the hands to be detached and floating for character display reasons on the Super NES. (laughs)" -Tatsuya Yoshikawa
    Mega Man X Official Complete Works, UDON Entertainment Corp. 2009. pg.17. Retrieved on April 8, 2011.
  4. MMHP: Mega Man X. Retrieved on 2006-6-8.
  5. Sigma: Why, X?! Why have you done this to us?! Without the humans, my Reploid brothers could have ushered in a new age.....
  6. Sigma: YOU HAVE WON A TEMPORARY VICTORY, X! WHAT YOU DESTROYED WAS ONLY A TEMPORARY BODY -- MY SPIRIT REMAINS INTACT. IN TIME I WILL FIND BODIES STRONG ENOUGH TO DO MY BIDDING AND I WILL RETURN. I WILL SEE YOU SOON, X. VERY SOON... --Mega Man X game, 1993 (US)
  7. R20 Rockman & Rockman X Official Complete Works, page 125.
  8. Sigma: Magnificent, X! And to think you've been classified as a "B-class" hunter! Ha ha ha ha!
    X: Sigma! Your Maverick plans stop RIGHT HERE!
    Sigma: Mwah ha ha! Hah ha ha ha ha ha!
  9. Mega Man Homepage - Mega Man X2: Bosses. Retrieved on 2007-8-6.
  10. "They sent Kaiser Sigma around to me towards the end. The only instructions I received were to make him 'messy.' (laughs)" -Tatsuya Yoshikawa
    Mega Man X Official Complete Works, UDON Entertainment Corp. 2009. pg.17.. Retrieved on April 8, 2011.
  11. Mega Man Homepage - Mega Man X3: Characters. Retrieved on 2007-8-6.
  12. Mega Man X3 ending.
  13. Compendium of Rockman X
  14. Sigma: Hee hee hee. My plan to keep Repliforce and the Maverick Hunters at each others' throats worked perfectly! --Mega Man X4 1997 (US)
  15. General: ...We're going to build a nation for the Reploids. That's our ultimate goal. We'll fight anyone who tries to interfere with our independence. --Mega Man X4 1997 (US)
  16. Mega Man Homepage - Mega Man X4: Characters. Retrieved on 2007-8-6.
  17. Sigma: It's about the Maverick Hunters, General. They are far too eager to please the humans and hunt down the Reploids! Do you believe they pose a significant threat?!
    General: Perhaps...
    Sigma: You already know the truth, General! Their sole mission has been to destroy any Reploids who fail to do as the humans order! -Mega Man X4
  18. Dr. Weil: Hehehehe... How pitiful. Of course, a Reploid like you would never understand. The joy of ruling all that you see... Only a human could possibly understand! Zero: A...human?
    Dr. Weil: That's right! I'm a bona fide human. The creator of Reploids... A human being!
    Zero: ...
    Dr. Weil: The desire for power. The joy of making everything work for you. You have no way of experiencing this without a human brain. It's the ultimate joy! No mere Reploid could ever understand! -Mega Man Zero 3
  19. "I was told that Sigma shouldn't be fully restored for this one, so I just went with that. He looks like a mess. (laughs)" -Haruki Suetsugu
    Mega Man X Official Complete Works, UDON Entertainment Corp. 2009. pg.60. Retrieved on April 8, 2011.
  20. "I followed up on the plain yet powerful image of Sigma from 'X1.' The one thing that I did put a lot of thought into was his chin. Up until now, Sigma's chin was shaped differently, depending on who drew him. I basically took this opportunity to decide once and for all what his chin should officially look like! (laughs) His final form is based on a demon, in contrast to Lumine's angel look." -Tatsuya Yoshikawa
    Mega Man X Official Complete Works, UDON Entertainment Corp. 2009. pg.74. Retrieved on April 8, 2011.
  21. Mega Man X Official Complete Works, UDON Entertainment Corp. 2009. pg.93. Retrieved on April 8, 2011.
  22. "Some people think he might have been inspired by Sagat from Street Fighter because of his look, but that's not actually the case. Sigma and Zero basically represent the idea that nothing is absolute. Sigma was a powerful leader of the Maverick Hunters but after Zero passed the virus to him, his allegiance changed. Circumstances can change anything, and nothing is absolute." --Keiji Inafune, 2008. Capcom-unity - Inafune-san Answers Your Questions!


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