Unicron/Generation 1
A Unicron or lots of Unicrons did lots of stuff in the Primax universal cluster. It's not all very clear.
Generation 1 cartoon continuity
The Transformers cartoon
- Voice actor: Orson Welles (English, The Movie), Roger C. Carmel (English), Toshio Ishii (Japanese), Mizuho Suzuki (Japanese, The Movie), Jean-Claude Michel (French, The Movie), Manfred Schmidt (German, "Ghost in the Machine"), Thomas Rau (German, "Grimlocks New Brain"), Werner Abrolat (German, The Movie TV Dub), Thomas Albus (German, Generation 2 "Ghost in the Machine"), Guillermo Romano (Latin-American Spanish)

Unicron was constructed by the ancient genius known as Primacron at the dawn of the universe. Primacron had hoped that Unicron would scour the galaxy clean of life, leaving a blank slate for him to experiment upon, but naturally, Unicron had no desire to be the servant of another, and turned on Primacron, badly wounding him and his assistant, and setting out into the depths of space. Call of the Primitives

In the year 2005, Unicron made his most famous attack upon Cybertron. While heading towards the planet, he consumed the small world of Lithone, making it perfectly clear how great of a threat he was to the entire universe. As he continued on his way, Unicron's powers allowed him to become aware of the death of Optimus Prime, who handed the Matrix of Leadership to Ultra Magnus just before dying, which angered him tremendously. He then came upon the bodies of several wounded and dying Decepticons, who had been dumped into space following a recent battle on Earth. He extended a proposition to the Decepticons' leader, Megatron, offering to rebuild his body and those of his troops in exchange for their destruction of the Autobot Matrix of Leadership. Tortured into accepting, Megatron was transformed into Galvatron, and his followers became Cyclonus, Scourge, and the Sweeps.

While Galvatron set about reclaiming leadership of the Decepticons, Unicron arrived at Cybertron, and proceeded to consume the planet's two moons. Outraged that Unicron would do this to a planet that he viewed as his, Galvatron found himself the victim of mental torture by his creator, and ordered to Earth to complete the task given him. The ensuing chase finally climaxed in a showdown on the planet of Junk, where Galvatron seized the Matrix and returned to Unicron, only to reveal that he intended to use the talisman to make Unicron his slave. Amused by his pawn's arrogance, Unicron transformed into his gigantic robot mode and ate Galvatron. Unicron then tore into Cybertron, as Shockwave and the rest of the Decepticons on the planet fought back, to little effect. Unicron swallowed many spaceships, and one, which contained the young Autobot Hot Rod and his comrades, crashed through Unicron's eye. Hot Rod and Galvatron battled deep inside Unicron, and ultimately, Hot Rod was able to retake the Matrix from the Decepticon. Transformed by its power into Rodimus Prime, he defeated Galvatron and opened the Matrix inside Unicron, destroying his body from within.
Unicron's head was blown clear during his death throes, and became caught in Cybertron's gravity, turning it into a new moon for the planet — a grisly testament to the satellites he had destroyed. The Transformers: The Movie

In the year 2006, Cyclonus, Scourge and the Sweeps visited Unicron's head, seeking to locate Galvatron, who had been hurled into space at the conclusion of his battle with Rodimus Prime. After accessing the remaining databanks and replaying footage of the final battle, Cyclonus extrapolated Galvatron's trajectory and current location. Five Faces of Darkness, Part 1

On the planet home to the monster known as Chaos, Astrotrain proclaimed that Galvatron would be "more famous in history than Unicron" once Galvatron destroyed Cybertron with his newly-built death crystal cannon. Chaos
Later, the ghost of the deceased Decepticon Starscream reactivated Unicron's head in order to make a bargain with him; in exchange for Unicron restoring his body, Starscream would recreate Unicron's. Stealing new optic circuits and a transformation cog for Unicron from Metroplex and Trypticon, Starscream was then directed to connect Unicron's head to Cybertron, so that the planet could become his new body. Starscream initially attempted to do this by using Trypticon's body, but Trypticon was deactivated by the Decepticons. Unicron restored Starscream's body so that he could finish the task, but Starscream (somewhat predictably, being Starscream) double-crossed Unicron and refused to complete the necessary connections. Just then, explosives set by the Autobots were detonated, hurling Unicron's head off the planet, beyond its gravity, and out into space. Ghost in the Machine
Seeking a supply of the dangerous particles known as anti-electrons, Galvatron and the Decepticons traveled to Unicron's head, only to come under attack from the defenses of the barely-aware giant. Also present was the Dinobot, Grimlock, who used components from Unicron's head to create the Technobots to fight Galvatron's forces. The Technobot Strafe disconnected enough of Unicron's internal mechanisms to deactivate his systems. Grimlock's New Brain
While a much older Primacron mused about how his new creation, Tornedron, would succeed where "the other" had failed, the giant, damaged head of Unicron was visible floating along in the depths of space, where it had apparently faded to a dull grey. Call of the Primitives
Japanese cartoon continuity
Wars comics
Story of Binaltech
Due to the temporal machinations of a Ravage with knowledge of the future, in one timeline Unicron met with Autobot troops when he attacked Cybertron, instead of Decepticons. He nonetheless destroyed many Cybertronians and devoured one of Cybertron's moons before Optimus Prime and Ultra Magnus left to confront the evil planet with the power of the Matrix. Darkest Hour Optimus was badly damaged during the journey to Unicron, leaving Ultra Magnus to infiltrate the titan's body alone. Though Ultra Magnus had not been chosen by the Matrix, he pleaded his case to the ancient artifact, and was allowed to unleash its power to destroy Unicron's body. Binal Time
Kiss Players/Teletraan Go! Go!

Following his destruction in 2005, Unicron's lifeforce was scattered across time and space, fragmented and parasitized into Autobot and Maximal leaders throughout history. In 2007, three of his servants, the Sparkbots, sought to recreate their master, and tricked the human singing group, the Kiss Players—Marissa Faireborn, Atari Hitotonari and Shaoshao Li—into helping them in their task by telling them that they were gathering the fragments of the so-called "Allspark".

Primus was forced to take action to stop their mission, appearing as a giant golden hand to steal away the energy fragments before the Sparkbots could collect them, but eventually, the evil trio collected enough to accomplish their dire task. Fleeing back in time to Earth's prehistoric past, they unleashed the energy and Unicron began to form around them. Following the Sparkbots back to the past, Primus unleashed the full firepower of his mobile battle platform's cannon, sealing Unicron's energy and the Sparkbots deep within the planet. He then created the mighty Brave Maximus to serve as a guardian and ensure that the evil being was never again reborn. Kiss Players radio drama #51
Unfortunately for everyone except Unicron, Brave Maximus would go on to leave the Earth in 2007, leaving the chaos-bringer's life-force unguarded. Sparkbots Volume 5 Kiss Players radio drama #39
Yokohama Decepticon Secret Base
Tarantulas was an agent of Unicron, and worked on his behalf to form a plot that would result in the destruction of the Transformers Expo. Doctor Arkeville was also likely influenced by Unicron into producing Nemesis Prime, who would serve as the vessel for the Dark Energon that would destroy the Expo. However, the plan ultimately failed thanks to Nemesis Prime's inherent sense of justice. In the end, though, Doctor Arkeville still stood as a subject of Unicron. Yokohama Decepticon Secret Base
Unite Warriors
Galvatron's ghost emerged from his icy entombment and possessed Cyclonus, ordering him to take him to Unicron. The pair approached Unicron's remains, sealed away in the Triple Z point, so that they could build a new body from the god's carcass. However Unicron was still conscious and far from powerless. He struck a deal with the two Decepticons; Unicron would reach out throughout the multiverse and pluck from their realities several 'bots who shared Galvatron's lust for revenge. Together, they would form a new "Grand Galvatron" body for the Decepticon leader, and leave Unicron's own body untouched. Galvatron agreed to Unicron's terms, and Roller, Thrust and Breakdown were brought to the Triple Z point. Starscream's ghost also turned up, and Unicron granted him a partial corporeal body to form the last component of Galvatron's new form. Unicron then ordered those before him to go out and conquer Cybertron in his name, but Galvatron was already scheming to betray his benefactor as he took off into space... Grand Galvatron comic
The Battlestars

Somewhere beyond the year 2025, the Ultimate Emperor Dark Nova seized command of the Decepticons. The spectral entity was described as appearing "very much like Unicron", though further details on his origin had never been divulged. Japanese Generation 1 timeline
Beast Wars II cartoon
At some point in the far future, human beings discovered Unicron's lifeforce within the Earth, and attempted to harness it for their own means. This resulted in the devastation of the planet Earth, reducing it to a ruin, Emissary of the Fourth Planet but the fame of this "mysterious energy" that had been called "Angolmois" was far-reaching, and eventually, tens of thousands of years after the end of the Great War between the Autobots and Decepticons, the Predacon leader Galvatron attempted to harvest it for himself. The New Forces Arrive! Using his artificial planet, Nemesis, he sucked all the Angolmois energy out of the planet and into the craft. However, after the interference of Lio Convoy and Lio Junior, all the Angolmois energy was sealed into capsules and ejected from Nemesis as it self-destructed. Farewell! Lio Convoy
Beast Wars Neo cartoon
- Voice actor: Tetsuo Komura (Japanese)
Teams of Maximals and Predacons, led by Big Convoy and Magmatron respectively, then raced to collect the Angolmois capsules, as their energy effects were wreaking havoc on planets all over the galaxy. Big Convoy, Move Out
They eventually collected all the capsules only to find themselves attacked by the mysterious and freakish Blendtrons. The Blendtrons, in truth servants of Unicron seeking to engineer his rebirth, proved nearly invincible, and stole the capsules from each team. Mysterious Beast Warriors!? They released the Angolmois energy and allowed it to possess Galvatron's dead body, restoring Unicron to life in a new form. Unicron Revived!? Unicron absorbed the last remaining ounce of stray Angolmois energy—the Blendtrons themselves—and left to settle his score with Cybertron. Great Convoy attempted to hold Unicron off with the entire Maximal armada, but Unicron's fiery serpent mode proved too much and he effortlessly destroyed the armada and Great Convoy along with it. Unicron then possessed Vector Sigma, the mother computer of Cybertron, effectively possessing the planet, and morphed Cybertron into his new body. End of the Maximals!?
Unicron then briefly exited Vector Sigma to deal with the last remaining Cybertronian resistance. Big Convoy, his Maximal new recruits, Lio Convoy and Magmatron all fought side-by-side against Unicron, but all they managed to do was stall him. Big Convoy then powered up his Big Cannon with his own Matrix, transforming it into the Matrix Buster. Big Convoy shot Unicron with the weapon, the powerful blast seemingly destroying the Chaos Bringer. The Final Battle With Unicron's spirit evicted from Vector Sigma, Cybertron returned to normal. The Maximals and Predacons then put aside their differences to help rebuild the planet Graduation Ceremony!!
Rodimus vs. Cyclonus
Upon being created by Unicron and charged with stealing the Matrix from Ultra Magnus, Cyclonus and Scourge vowed to prove themselves to Galvatron in battle. Rodimus vs. Cyclonus
Wings Universe

Apelinq considered the return of Unicron to be a less daunting challenge than a mandatory meditation session and lecture for the Cybertronian Knights by Alpha Trizer. Apelinq's personal log
Time-traveling to the future when Cybertron would theoretically be at peace and therefore unprepared for threats, the Star Seekers tried to use Unicron's head to drain all the energon out of Cybertron. A battle ensued aboard Unicron's head when the Cybertronian Knights arrived to stop them. However, the battle was prematurely ended when Alpha Trizer revealed to Star Seeker Captain Cannonball that Cybertron in 2984 was techno-organic and thus no longer operated on energon. Most of the pirates were then arrested, but during the battle Hunter was lured away by Unicron's voice to a transwarp portal that led into the past. There, at Unicron's urging, Hunter touched the Matrix of Conquest and became Shokaract! Hoist the Flag
Fun Publications
Vector Prime noted the Unicron of Primax 984.17 Alpha was not part of the Unicron singularity. Ask Vector Prime However, such distinctions would later cease to exist as multiversal singularities no longer did. Out of the One, Many
Marvel Comics continuity
Marvel The Transformers comics

Millions of years after Primus and Unicron entombed themselves inside planetoids and went their separate ways, circa the Earth year 1990 a group of Transformers discovered the sleeping form of Primus at Cybertron's core. When a battle erupted, a stray laser blast struck Primus, briefly jolting the god awake and causing him to emit a multiverse-shaking "Primal Scream" that alerted Unicron to Primus's location. Primus himself immediately slipped back into his sleep, but it was too late. The Primal Scream

While devouring the planet Ghennix, Unicron took note of three criminals who were attempting to escape their fate. Unicron destroyed their vessel and recreated the three as Hook, Line, and Sinker. As the distance to Cybertron was vast and he was too large to teleport, he ordered them to retrieve a Galvatron from a possible future to serve as his herald. All Fall Down Though this Galvatron was angry at being plucked from his victorious timeline, Unicron tortured him until he agreed to be his herald. Still, this Galvatron secretly plotted his eventual treachery. Unicron sent all four of them to attack Cybertron and pave the way for his coming. Eye of the Storm
So close to Cybertron he could taste it, Unicron decided to forgo consumption of the planet Jhi and hasten on his way to the ultimate confrontation. His herald Galvatron, however, captured Autobot leader Emirate Xaaron, forcing him to fully awaken Primus. Suspecting treachery on Galvatron's part, Unicron sent Hook, Line and Sinker to retrieve him from the subterranean tunnels of Cybertron, but Galvatron destroyed them, and Primus was woken from his slumber. Unicron's arch-foe possessed Xaaron's body and summoned Transformers from all across the universe back to Cybertron. Out of Time!
Unicron shut down his higher mental functions and drifted for the remainder of the journey to hide himself from detection by Primus. At this point, a mental command that Unicron had placed in some of Primus's creations was activated, resulting in the formation of a cult of Unicron-worshipers, who gathered to destroy the leader of the united Autobots and Decepticons. These Unicron cultists were drawn out when Optimus Prime was named commander of Primus's army. The cultists tried to assassinate the Autobot leader; they failed, but distracted the Cybertronians long enough for Unicron to sneak up on the planet. The Void!

After Unicron dug his fist into the planet and ate the flesh of his mortal enemy, he noted that this was the finest meal he had ever tasted. However, he was somewhat disappointed to find that the gathered Transformers were simply so terrified of him that there was no resistance to his attack. As he devoured Brainstorm from the tip of his finger, he admitted that despite their lack of showmanship, they were at least delicious.
Unicron's unchecked rampage was soon ensnared by Primus himself, speaking through Emirate Xaaron's body. For a short moment, Unicron was restrained, but when he deduced that this ruse was a big show put on by an insignificant portion of Primus's power, he broke free and destroyed the avatar of Primus, killing both Xaaron and his creator.
Galvatron, who was worried his treachery was going to waste, attacked Unicron, hoping his bravery would stir the Transformers into action. Galvatron was smacked down, but his gambit paid off as the Transformers snapped out of their collective stupor and began a counter-attack against the Chaos-Bringer. Countless Transformers died in this assault, including the Decepticon leader Scorponok. But Transformers weren't the only ones attacking him. Briefly fazed by the illusion-casting powers of the human Neo-Knight Rapture, Unicron's systems were attacked by the electrical powers of Circuit Breaker.

After being clocked by the Ark, Unicron received another surprise: the thought-lost Creation Matrix had returned, along with its vessel, Thunderwing. Unicron was at first confused, as he'd sensed the Matrix's destruction, but quickly realized that the Matrix had not been destroyed, but had merely been masked by its seduction by evil. And in the realm of evil, Unicron had no equal! Thunderwing was destroyed, but the Matrix fell to the planet's surface.
Fighting the evil within the Matrix, Optimus Prime grabbed the artifact and launched into Unicron's maw, where the Creation Matrix was opened. While being pummeled by the flood of life unleashed by the Matrix, Unicron's body could not maintain structural integrity and exploded. On the Edge of Extinction!

In an alternate 2005, Unicron's consumption of the planet Lithone was heralded first by strange pink mists[1] that leaked from his planet mode's maw. On route to Cybertron, he encountered an injured Megatron and the bodies of his troops. He offered them new bodies in exchange for hunting down the Matrix. The Planet-Eater! As Galvatron was sent forward, Unicron devoured Moonbase One and Moonbase Two. Judgment Day! Galvatron returned to Unicron with the Matrix, but he intended to use it to make Unicron his slave. In retaliation, Unicron attacked Cybertron in earnest, as the planet was helpless against his assault. Ultimately, during a battle that took place inside Unicron, Rodimus Prime claimed the Matrix of Leadership from Galvatron and the Planet-Eater was destroyed from within. Only his head survived, and it remained in orbit over Cybertron. The Final Battle! The Big Broadcast of 2006
In another alternate 2005, a dying Megatron was found by Unicron. Unicron refashioned Galvatron into his herald, A Savage Circle and through their combined efforts, Unicron succeeded in devouring Cybertron. In the aftermath, he allowed Galvatron and his Decepticons to rule Earth. Rhythms of Darkness!
Earthforce
After Grimlock accused Optimus Prime of being too focused on Unicron's imminent arrival, to the detriment of Earth's troubles, the Dinobot Commander was allowed to create an Earthforce. Break-Away!
However, Prime had his work cut out for him. With an attempted Decepticon alliance ruined beyond all recovery and the Matrix still lost, Optimus had to turn to the original site of the Underbase—as the Underbase was linked to the centre of Cybertron, the Autobots could tap into that centre (and thus Primus himself) as a substitute Matrix. The Magnificent Six!
Marvel UK future timelines

In the parallel timeline of Earth-120185, Unicron did not arrive at Cybertron until the year 2006, consuming the small planet Lithone on his way. As he drew closer to Cybertron, Unicron came upon the damaged bodies of Decepticon leader Megatron and several of his Decepticon followers, who had been jettisoned into space following a major battle at Autobot City on Earth. Unicron extended Megatron a bargain, offering to rebuild him and his troops into new beings to serve him, and tortured the recalcitrant Decepticon leader into accepting. The Planet-Eater! Now reborn as Galvatron, Megatron immediately began scheming to destroy his "master", using a time-jump mechanism to travel back in time to 1986, where he constructed a solar cannon that was powerful enough to destroy Unicron's physical form. Fully aware of his pawn's actions, Unicron took control of the minds of Hot Rod, Kup, and Blurr and had them follow Galvatron back in time to foil his plan. Target: 2006
After Galvatron returned to 2006, he fought Rodimus Prime within Unicron, where he was defeated and thrown out into space. He still had remote to the time-jump mechanism and used it to travel back to 1986 again, where he planned to take over the Decepticons so he'd be ready for Unicron when he arrived 20 years later. Fallen Angel Unicron himself was destroyed in a vast explosion, leaving only his head intact... and, unknown to anyone, that was all he needed to stay alive!

His head floated off through space to eventually crash-land on the planet Junkion. There, the still-conscious Unicron used mind control to force the native Junkions to build him a new body out of the planet. At the beginning of 2008, he pulled Cyclonus, Scourge and Death's Head into his thrall and used them to re-ignite the stalemated Cybertronian war in order to keep the Autobots distracted from his activities. Amused by Death's Head's repeated attempts at defiance, he told him about his origin, only to find himself now under attack by Rodimus Prime and an Autobot strike-team.
This almost went wrong, as Rodimus (at Death's Head's suggestion) tried to use the power of the Matrix on the astral plane. Here, however, the Matrix strengthened Unicron and the monster intended to merge with it for greater power. Ultimately, however, he was defeated by Wreck-Gar, who had planted explosives under the head's building site while the Chaos-Bringer was distracted. His head was destroyed, and his mind was sealed within the Matrix. The Legacy of Unicron!

On New Year's Day 2009, Unicron attempted to turn the Matrix towards evil and merge with it again, the only way he could bear being trapped within it. White Fire He reached out from within it and took control of Rodimus Prime's body, Edge of Impact only to be stopped when Kup ripped the talisman out of his chest. Unfortunately, this meant they lost their chance to purify the Matrix and that Unicron would be ready for them next time. White Fire In 2010, he repeated the trick and transformed Rodimus's body into a copy of his own before being forced back. In the far future of 2356, Unicron's essence still resided within the Matrix, steadily withering the struggling body of Rodimus. Aspects of Evil!
Transformers Comic-Magazin
Template:TransformersComicMagazin In this reality, the Decepticons had always followed the commandments of Unicron. Luckily, Goldbug was able to defeat him on Junkion and the Decepticons suffered a great mental defeat. Unsure if Unicron was dead or not, the Decepticons decided to carry on as if he wasn't. The Curse of the Pyramids
Marvel Generation 2 comic
Optimus remembered Unicron as one of the many threats the Autobots had overcome. War Without End!
Regeneration One
Beast Era cartoon continuity
Beast Wars cartoon
- Voice actor: Blu Mankuma (English), Hidetoshi Nakamura (Japanese)

When Starscream appeared on prehistoric Earth and was questioned by the stranded Predacons about how he came to be this way, Starscream "explained" that his body was destroyed by Unicron while serving his master, Galvatron. This was, of course, a misrepresentation, and it was revealed later that it was actually Galvatron himself who killed Starscream. Possession
When the Vok spoke with Optimus Primal in Earth's pre-history, they took the form of Unicron's head, claiming that they scanned his mind and chose Unicron as an "authority figure". Other Voices, Part 1
Megatron would later invoke the name of Unicron by referring to Tarantulas as "Unicron's spawn" in a derogatory manner. Nemesis Part 1
3H comics
After Unicron's entrapment in a lifeless, metal asteroid the dawn of time, Covenant the dark god recruited the Quintessons to seek out the location of his nemesis, Primus. But when the Quintessons discovered Primus, now having taken the form of the planet Cybertron, they decided to delay reporting their findings so they could first exploit Primus to their own ends. After finding the "singular threat" to Unicron and discovering how to subvert it, they used it to create a race of robotic beings which they could sell to other worlds for a price. Disclosure

After his destruction in 2005, Unicron's essence was sent spiraling through time and space, to crash on prehistoric Earth, prior to the conflict known as the Beast Wars which would occur on the planet. It is unclear if this was a deliberate attempt by Unicron to preserve his power or not, but this "Dark Essence" seemed to lack any real sentience, suggesting that it was merely Unicron's "power", while his spark remained in his intact head in the future. Paradox

The Dark Essence was discovered by a Predacon known as the Hunter, who recognized the dark god's power, and fashioned from the Essence the Matrix of Conquest, a twisted version of the Autobot Matrix of Leadership which he used to conquer and rule over an apocalyptic 32nd Century future, under the name "Shokaract". Resistance against Shokaract resulted in an attempt by his opponents to travel back in time and destroy the Dark Essence on prehistoric Earth, thereby erasing Shokaract from history, but the villain travelled back in time to stop this effort. A massive battle between him and Transformers from throughout the multiverse ensued, but eventually, thanks to the efforts of the Covenant, history was altered so that Unicron's essence never arrived on prehistoric Earth, erasing this timeline—and Shokaract—from existence. Terminus

Just after the Beast Wars ended on prehistoric Earth, the Vok assembled a team from the remains of that war to counter Tarantulas, Unicron's spawn. Primal Prime, the leader of the Vok's team, had visions of a future apocalypse, involving Unicron, that encompassed every timeline in the multiverse. Primeval Dawn Part 2 After Tarantulas ripped the Matrix of Leadership from Primal Prime's torso, he oversaw the construction of a transwarp portal that would allow him to bring his prize as an offering to Unicron. Primeval Dawn Part 3
One week after the Great Reformatting, the Predacon gangster Cryotek succeeded in acquiring the Divine Light, one of the Quintessons' discarded attempts to subvert the will of Primus. As Cryotek used it steal Primus's power for himself, Sentinel Maximus warned him that flaunting Primus's power would catch the attention of Unicron and doom them all. Cryotek laughed at this, since Unicron had been dead since three centuries earlier, and the idea of his resurrection was a fairytale believed only by the naive. Wreckers: Finale Part II

Cryotek was defeated, and one year later Unicron struck once more. His body ruined and trapped between universes, he sought to revitalize himself by abducting Transformers from across the multiverse and pitting them against each other within the Cauldron, a dark dimension contained within his own body, absorbing their energon radiation and eventually consuming their sparks. He chose to kidnap several Autobots and Maximals from the technorganic Cybertron, but that was also the staging ground from which Primus chose to launch a counterattack. Primus gathered an army from many different universes and put the resurrected Optimus Primal at its head. Abduction Optimus Primal conducted his opening salvo by infiltrating the Cauldron and engineering a mass jailbreak. OTFCC 2003 live-action script reading Escape
These "Children of Primus" raided Unicron to free his captives from their prison cities, battling Unicron's own legion of "Minions" all the while. These conflicts escalated for months or perhaps longer, their intensity rivaling the Great Wars.[2] This all came to an abrupt end during the final battle, when Unicron simply vanished due somehow to the Unicron Singularity. Revelations Part 2
IDW Beast Wars comics

Sometime after a series of events similar to those of Lio Convoy and Big Convoy's experiences on Gaea in another universe, Unicron's heralds, the Blendtrons, were instructed by the Chaos Bringer's essence to gather the Angolmois capsules scattered across the galaxy, which contained Unicron's energy. The taint of Angolmois would cause unrest and violence across Cybertron as the planet tore itself apart in renewed savage mindless conflict. At the same time, Unicron's chosen yet unwitting vessel, Shokaract, was fed Angolmois by the Blendtrons, having been convinced that it would grant him the power to be reborn as a god. In one potential timeline, this did indeed happen as Unicron was reborn from Shokaract's corrupted form, and the Chaos Bringer proceeded to consume Cybertron itself. The Ascending #1
However, this was averted before it came to pass—thanks to the actions of the in-temporal-limbo Magmatron, who alerted Ravage and by extension Lio Convoy to Unicron's plan and enlightened Shokaract when the tyrant was temporarily shunted into Magmatron's personal purgatory. Realizing what his ascension actually entailed, Shokaract tore the Anti-Matrix from his chest, sacrificing himself and ending Unicron's plan at re-ascension. The Ascending #4
Beast Machines cartoon
During Megatron's rule of Cybertron, Rattrap once compared the Predacon's big floating head as a "monument to Unicron", implying that the Chaos Bringer's head orbited Cybertron after his defeat. By the time of Megatron's rule, however, it had apparently left the planet's orbit, as it was never seen. Prometheus Unbound
Bom Bom manga continuity
Beast Wars II comic
After his destruction in 2005, Unicron's displaced lifeforce became trapped within the planet Earth, where it was eventually discovered and manipulated by humankind (who were unaware of its origins). This resulted in the devastation of the planet, but the fame of this "mysterious energy" that had been called "Angolmois" was far-reaching, and eventually, twenty million years after Unicron's destruction, Double Cross the Predacon leader Galvatron travelled to the deserted Earth (now known as Gaea) and attempted to harvest it for himself.
A Maximal energon survey team was sent to the planet Unicron, but it lost contact with Maximal Army Central Headquarters. Demolish the Superdreadnought Tank!
Galvatron eventually succeeded in sucking-up all the Angolomois energy on Gaea into his artificial planet Nemesis. All Hands, Make a Special Attack on the Evil Planet! The Maximals journeyed to Nemesis to stop him, only for Lio Convoy to become corrupted by the Angolmois energy, turning a Predacon. Lio Convoy was able to channel the true spiritual energy of Gaea through his Energon Matrix and dispel the taint, restoring himself. He then used that same power to destroy Nemesis, the Angolmois, Galvatron and the Predacons. Win the Battle of Light and Darkness!
The Angolmois explosion wound up creating new problems, transforming a small group of dinosaurs into the Predacons led by Magmatron. As they left their homeworld in search of the lost Angolmois, a mysterious, supernatural figure (Unicron) looked on in interest. The Beast Wars "Neo" Begin!!!
Beast Wars Neo comic

On the planet Gaea, a group of Predacons somehow came into possession of a mysterious spheroid object known as the Black Ball. The strange artifact was of some importance to the Predacons; it may in fact have told Magmatron that he could rule the galaxy once he had the seven Angolmois capsules.

When Big Convoy came to rescue five Maximal rookies who were trapped in the Galvaburg II on Gaea, the Maximals found the Black Ball and retrieved it.
After the Maximal returned to the Gung Ho, they attempted to analyze the Black Ball. However, the Black Ball activated the ship's warp engine. The 5 Rookies During the warp, the Black Ball began to speak, telling the Maximals about the Angolmois capsules, which originated from the final conflict between Lio Convoy and Galvatron on Nemesis. It also told them that there were seven Angolmois energy capsules scattered across the galaxy in total. The Maximals were warned that they must retrieve all the capsules to prevent them from falling into the wrong hands, or the galaxy would be in extreme danger. The Gung Ho subsequently arrived at the planet Luxor, where one of the capsules was located. There Are 7 Capsules
The Black Ball guided Big Convoy's team to various other places where capsules were located.
When Magmatron, who was in a healing chamber in the Dinosaur due to wounds caused by Big Convoy, learned that he lost his troops in the battle on Jörmungandr, the Black Ball suddenly appeared. The Black Ball told Magmatron that it could see he was short-handed and offered Magmatron some "helpers"—the Blendtrons, who emerged from within the Black Ball. A Battle Fought Alone
The Black Ball told both Big Convoy and Magmatron of the planet where the last capsule was located. Magmatron faced off with Big Convoy there, and ordered the Blendtrons to attack the Maximals. One of the Blendtrons, however, chose to attack Magmatron instead. The action of the Blendtrons baffled both Big Convoy and Magmatron alike. The Black Ball then arrived on the planet's surface.
It was revealed that the Black Ball was actually Unicron himself, or more specifically, his essence, while the Angolmois energy was his life force. Unicron absorbed the six capsules and reformed his head out of the Black Ball. He then revealed that the last capsule was actually both Big Convoy and Magmatron, who were evolved by the power of the Angolmois capsule on their home planet in the 7th Cosmos.

Big Convoy teamed up with Magmatron to fight against Unicron, but both failed. Big Convoy was saved by Heinrad, who told him about Unicron's existence and the plan of the Ruler of Time and Space—to erase the universe and create a new universe without Unicron, the "cancer". After Heinrad was forced to leave due to his interference, Magmatron was chewed up and spat out by Unicron.Double Cross Unicron then headed to the planet Cybertron. He latched onto the planet like a parasite and turned it into his new body.
Unicron desired to consume Big Convoy, the last half of the capsule, in order to make his right eye fully functional once more. His physical body was destroyed by Big Convoy after a harsh battle with Big Convoy's crew. However, Unicron's essence emerged from his physical remains and plastered itself onto Big Convoy's body, trying to possess him. Big Convoy removed the Matrix from his chest and unleashed its power, sacrificing himself and successfully destroying Unicron once and for all. Return to Zero
Dreamwave Generation One continuity

Unicron's servant, The Fallen, tried to bring about his second coming by breaking the Seal of Primus, but failed. Conflagration Unicron sent a wave of drones and heralds into the universe, with the Alpha Drone, Scourge, arriving on Cybertron 3000 years ago, amidst the Great Shutdown, which he ended when he reactivated Shockwave for research purposes. Generation 1 #0 Shockwave happily shot him and experimented on him, and through these experiments became interesting in uncovering the secrets to Cybertron's history. This curiosity led him to steal the Matrix of Leadership and activate Vector Sigma, which sent a beam across space that roused Unicron from his slumber. Revelation
Now awake, but not at full power or consciousness, Unicron set out on a course towards Earth(!). The planets he consumed along his way, including the planet Lithone, accelerated his rejuvenation quicker than Quintesson spectators had calculated. Using the raw materials Unicron harvested from Lithone, he created a new batch of drones based on a second body template. Subsequently, Cyclonus burst free from his birthing pod. Generation 1 #0
G.I. Joe vs. the Transformers

Here, Unicron enslaved the population of the worlds he ate to maintain his inner works; one race included the Beastformers. He is known about in Transformer legend, and is said to have been banished from his homeworld.

Thousands of years ago, when humanity was at a primitive stage, Unicron turned up to devour the Earth. The ancestors of Cobra-La, however, had developed a metal-eating spore that could potentially kill Unicron. They came to an agreement—they would go into exile, while Unicron would merely eat human civilisation once it had developed to a useful point. Eventually they did, and Unicron began broadcasting announcements of "I Return" as he headed towards Earth. The Art of War #5 Black Horizon, Part 1 of 2
Unicron reached Earth and transformed so as to consume civilization in robot form. Japan was devastated and humanity collectively wet itself. But the world was saved by Cosmos and Flint, who flew into the Chaos-Bringer and doused his organic looking brain with Cobra-La's metal-eating spores. Unicron was killed, the world was saved, and G.I. Joe went on to explore the dead monster's innards. Black Horizon, Part 2 of 2
Universe CD-ROM

In a universe where Optimus Primal led the Autobots and Reptilion led the Decepticons, a ship arrived once a year when the Transformers' civil war reached a fever pitch. The ship abducted every Decepticon it could find and promptly left.
These Decepticons were brought to Unicron, who was preparing them for an eventual, ultimate battle for the universe. But unknown to even Unicron, Primus, the sentient core of Cybertron, was amassing an army of Autobots that rivalled Unicron's army of Decepticons. Could Primus meet Unicron's challenge, or was the universe doomed? Universe CD-ROM
United toy bios
During the United battle, the Decepticons revived Unicron from the astral plane. Unicron took an Autobot spaceship as his new body, which he altered into a tank. Ark Unicron bio Optimus Primal entered into battle against this new threat. During the fight, Primal's ship, the Axalon, mysteriously gained a spark and became a Transformer. The Axalon was then the Autobot's greatest hope of defeating Unicron. Axalon bio
Transformers GT: Mission GT-R story pages

Reborn after a previous defeat, Unicron attacked the Transformers GT finals and absorbed the Goal Energon, a vast store of energon intended to be awarded to the winner of the race. He then turned his attention toward the GT Transformers, intending to devour their energy as well, but was met with resistance from GT-R Maximus and his Master Jack Sword. Bringing Down the Sword The assembled GT Transformers used their "Matrix In" ability to combine with their GT Sisters and regain their true strength, allowing them to defeat Unicron. The True TFGT
Cloud
Notes


| “ | Since Unicron is a villain and because I was fooling around at that time, I decided to make him look demonic with goatee, horns, bat-like wings and eagle talons for feet. I got the idea of Unicron from the planet Saturn and Satur. Actually, the original name was "Ingestor," but the writer changed it to Unicron when he saw the design, probably because of the "horns." | ” |
—character designer Floro Dery, Floro Dery's TransFormers Exhibit And Interview | ||
- Before the Transformers brand even existed, Takara designer Hiroyuki Hataike drew up a "Planet-Robot" toy for the Micro Change line, a design that would eventually inspire Unicron.
- In early preproduction for The Transformers: The Movie, Unicron was referred to as the Entity. A model sheet from later in the movie's preproduction revealed that, at one point, the planet Unicron would turn into the robot Ingestor. An early rough draft of the film detailed some of the specifics of this; the disembodied voice of Ingestor would have presented itself to Megatron as merely the master and custodian of the planet Unicron, communicating from somewhere within the planet. He would remake the Life Spark of Megatron and other fallen Decepticons into Galvatron and his troops, and implore them to bring him energon to feed the planet, consumed with straw-slurping and lip-smacking sounds. Only at the draft's climax were Ingestor and Unicron revealed to be one and the same, as the energy the planet had been absorbing was revealed to be required to power the planet's transformation into robot mode. We used "robot" loosely, though; many pieces of organic terminology are used throughout the draft to describe planet and robot forms, such as the planet being covered in what appeared to be grass trees but which were actually the hairs of his humanoid form. At the end of the early rough draft, Unicron is destroyed completely by the Life Spark of Optimus Prime.[3]
- Character designer Floro Dery claims his designs for Unicron were very large and complicated. For example, there were three drawings of Unicron's internal organs that were 2'x7' each. Dery also explains that Unicron's television monitor-covered core is "like security monitors in a building," and that he must watch these screens manually to know what is going on, rather than the information being diverted directly into him from the screens' source. And finally, the orbiting moon that is seen in the discarded Generation 1 prototype by Takara (see Unicron/toys) was intended to be "a kind of mini-Unicron, like Mini-Me of Dr. Evil." Floro Dery's kind of eccentric.[4]

- Floro Dery's production notes as shown on his designs for Unicron (then "The Entity") reveal some very interesting things that don't quite come through in the original film or were dropped:
- The spheres on Unicron's rings are meant to be roughly equivalent in size to Earth.
- The surface of Unicron was originally a dense jungle of metal and mechanical creatures.
- Dery's roundabout reasoning for giving Unicron rings is explained: "Saturn sounds like Satur [presumably meaning satyr]. Satur is synonymous with the Devil. The Entity is a Devil-like planet. This is the reason why I designed the Entity like the planet Saturn."
- A moon is included (as in Takara's G1 toy prototype), but never explained aside from being flashy and conductive.
- All the circular portions on the planet's surface were to flash and reflect different colors to "dazzle the viewers" and eliminate the epileptics in the audience.

- An earlier version of Unicron's head showed up during Unicron's transformation scene in The Transformers: The Movie. Originally animated for The Transformers: The Movie promo, this version has no facial hair and has extra greebles all over his face. It also colored the helmet entirely gray, save an orange mohawk. In IDW's comic book adaptation of the animated film, Don Figueroa drew a hybrid between the two designs, combining the facial hair and the orange mohawk.
- ↑ The original script called this an "electronic mist". It sets you on fire and melts you.
- ↑ Optimus Primal's bio in the Transformers Collectors' Club comic #9
- ↑ Auctions Transformers: The Movie script @ Disciples of Boltax
- ↑ Zobovor's Interview with Floro Dery
- Pages with image sizes containing extra px
- Character stubs missing fiction
- Pages with broken file links
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