Ultraman Cosmos's History
Ultraman Cosmos is an Ultra known for his calm and gentle fighting style, and his compassion for monsters. Between his titular series and three tie-in movies, Cosmos had traveled to Planet Earth multiple times and bonded with Musashi Haruno.
An alien being who guards the Earth, he followed Alien Baltan through space as it tried to make its way towards Earth. Meeting up with it and quickly fighting it, the giants clashed. Fighting for some time and trading blows, soon both warriors fell from the sky. While Baltan goes underground, Cosmos is wounded and out of power. At death's door, it seemed the hero was done for until a small boy discovered him. Musashi Haruno managed to revive the hero by reflecting sunlight into the beam lamp on his head.
Revived, Cosmos took the young boy for a ride over the landscape before giving him a small gem that contained the power to summon the hero. His parting words were "One who is strong is one who is brave". During Basical's raid on the city, Musashi tried desperately to call him but couldn't. He was forced to watch as the alien destroyed all in his path.
Later on, after Basical was awoken by the Sharks' jets, Musashi found his courage and managed to call on the giant. Cosmos spoke with the Baltan guardian and demanded that he return home and depart Earth, declaring it off-limits. When he refused, the blue and silver guardian fought Basical to a standstill, until the insect-like creature morphed into his Neo Baltan form.
After being attacked by this new form, Cosmos called on the strength of his Corona mode. In this form, Ultraman Cosmos was able to thwart the invader and overpower him. Using the Blazing Wave, he dealt the final blow and put the invader down. Basical admitted defeat and shed tears before Cosmos' attack took effect. All he wanted was to give the orphaned children of his world a stable planet to live on and now that was impossible. After he fell, Cosmos used his powers to revert his body to his previous form and watched as the children of planet Baltan departed with the body of the last adult Baltan and began the journey back to their homeworld, beyond the solar system.
When a new villain fell on the Earth in the form of the Chaos Organisms and infected Lidorias, Ultraman Cosmos returned to the Earth. Uniting with Musashi who is now an adult, the pair joined forces in secret. Cosmos would appear to face countless enemies, destroying some and freeing others. Facing down lines of chaos monsters and new invaders, this new wave of attackers seemed endless.
In the middle of the series, Musashi becomes obsessed with trying to become stronger in order to combat the Chaos Header even to the point where he failed to save Eligal from dying, blaming Cosmos for his weakness. Later, he suffers a dream where both of Cosmos' forms Luna and Corona were fighting each other as the two giants collided and died in an explosion. When Chaos Eligal reappears again, Musashi transforms into Ultraman Cosmos and purified the monster with all his strength via Luna Extract but in a twisted turn, the Luna Extract was absorbed, with the Eligal that was possessed eventually devoured and turned into Chaos Header Mebut, beating the Ultra with a Shockwave Ball. Cosmos was left powerless, defeated by the tyrant for the first time. Cosmos separated from Musashi and turns pale in a similar manner when they first met.
Musashi set out to find Cosmos on the same spot the next day where the giant is still in a weakened and pale state. He received help from Ayano, his childhood friend and Clevergon to reignite Cosmos. Chaos Header Mebut appears at a K3 Point Unopposed now, the monster was free to attack. Later, the tyrant tries to kill Cosmos who was on the verge of dying. Before the EYES forces could arrive, Lidorias appeared and attacked the evil entity, EYES unleashed all their weapons with little effect. Thankfully, when the creature infected Lidorias with Chaos Organisms, the winged monster was capable of withstanding it and continued to battle. Chaos Header Mebut’s dreams of absolute destruction would seen be ended, however. In the time of the eclipse, Ultraman Cosmos rose just in time as Lidorias was down. With newfound power of revival, he transformed into Corona Mode and brought the fight yet again. The titan was still unwilling to go down. As the eclipse ended, Cosmos awakened a new form of power, the Eclipse Mode. The ground shook under his very footsteps and the hero effortlessly tossed this vile demon around as if it was a rag doll. When Mebut fired all of his weapons at once, the hero repelled his attacks. Knowing it stood little chance against the warrior of light, the creature picked up Lidorias and attempted to use her as a shield. In response, Ultraman Cosmos fired his Cosmium Beam, penetrated Lidorias' body, instantly killing the Chaos Organisms within him. It continued out his back and struck Chaos Header Mebut. Unable to withstand such power of light, the demon’s body was engulfed in fire and exploded.
With Luna Extract and Corona Extract no longer able to be used in expelling the virus, Cosmos would have to utilize Eclipse Mode.
Now able to take on virtually anything, the guardian of the Earth was confronted with more creatures of chaos and even Chaos Ultraman and its evolution, Chaos Ultraman Calamity. The battles, however, would end on the moon, or so it seemed. After Cosmos won his final battle with Chaos Ultraman, with help from EYES, the false Ultra underwent a startling transformation, becoming Chaos Darkness, an avatar of the Chaos Organisms' mind who wielded power greater than the previous Chaos Headers and Chaos Ultraman.
Defeated by Chaos Darkness, the hero separated from Musashi as his power ran out. He appeared soon after, still weakened, to save Musashi from Chaos Darkness. Musashi begs Cosmos to stop attacking Chaos Header but he refuses and mercilessly attacked Chaos Darkness in his full anger, but was unable to fight back as the fiend readied its next attack. Musashi voluntarily joined with the hero yet again to defeat the Chaos, this time recharging Cosmos and transforming him into Miracaluna mode. With the help of three Earth monsters, he uses his Luna Shootless and Luna Final on the evil, the Chaos Organisms were purified and Chaos Darkness turned into an angel-like entity. Chaos disappears and reverts back to the light form but not before he thanks Cosmos for purifying him. Cosmos separates from Musashi and thanks him for defeating the Chaos Header through a peaceful way as he leaves the Earth.
The Earth was freed of the Chaos Organisms and Musashi and Cosmos again went their separate ways, but fate wouldn't keep them apart for long. While investigating an alien world, Musashi found himself in the middle of a battle between Scorpiss and the Space Corona Mode Cosmos. The hero managed to defeat the insect-like monster, but wouldn't return to Earth right away.
Musashi, now a member of Team SEA, begged the hero to return after the Rayja were conquered. The hero obliged and came down, merging again with Musashi to take on Eclipse Mode and devastating the hordes of Scorpiss. The leader of the invasion watched on angrily and came in for his own battle, ready to take the planet for his own.
Sandros devastated the hero, using its energy blasts and telekinesis to throw the giant around as if he were a doll. However, an ally of Cosmos would arrive. Attacking the fiend from the rear, Ultraman Justice then delivered Cosmos some energy, recharging the hero as the two rose up to take on the creature side-by-side.
Laughing aloud, Sandros began to unleash his black cloud. Unable to see the monster in the darkness, the two warriors were attacked by its energized blade repeatedly. Trying to keep track of the monster, the two finally saw their chance. It had foolishly charged up a fire ball, exposing it in the darkness it had created. The two super beings each fired their beams, blasting the invader into oblivion.
The Earth was saved yet again, but an unexpected threat would take on the Earth next. As a hostile alien force moved in on Earth, Cosmos was there to fend it off. While in a battle with two Gloker Pawns, the hero was reunited with Ultraman Justice, but this encounter would go much different than their last. Justice revived the two machines with energy and attacked Cosmos, taking down the Earth’s guardian.
The Earth was now exposed to Justice and the Gloker robots, but the Earth's Kaiju wouldn't sit back and let everything get destroyed. Despite their bravery, even the monsters couldn't thwart the invaders. Ultraman Justice, however, would eventually regain his love for humanity and, in the midst of the final battle against Gloker Bishop, Cosmos would be revived and would grow into an even stronger form: Future Mode.
The two giants challenged the machine head-on, and after recharging Justice, the two managed to finally bring down the juggernaut. The two Ultramen then flew into space, ready to defeat the rest of the fleet that was preparing to attack. Their beams had little effect against the huge war ship and they were blasted back by its super strong beam attack.
They weren’t ready to give up yet, however. They united into one super being, a giant of untold power and strength: Ultraman Legend. The powerful warrior of light held the destructive beam of energy and forced it back into the ship. The blast ripped the huge craft apart and an explosion larger than that of any other engulfed the superhero.
Ultraman Legend returned to normal, separating back into Cosmos and Justice who looked on as the rest of the fleet turned around. The Earth would still be guarded by Ultraman Cosmos, but would also be guarded by Ultraman Justice. Having defeated the alien threat, after Legend's job was done he turned back into Cosmos and Justice. After that the two continued to guard the Earth.
After Zero saved Taiga and combined with him, Gubila appeared and caused havoc in the city and Taiga instead of transforming, he ran around comically with Takeru until Ultraman Cosmos appeared and fought the drill nose fish Kaiju and managed to calm it with the Full Moon Rect. Later, when Gubila once again appeared alongside Gomess fighting each other, Musashi transformed into Cosmos fighting the two monsters with Taiga transforming into a mini sized Zero. The two managed to fend off the Kaiju with Cosmos use the Full Moon Rect on the two Kaiju. But, before they could rejoice, Alien Bat in his spaceship killed the two kaiju. Musashi alongside Taiga transformed into Cosmos and Zero goes to combat Alien Bat and his creation, Hyper Zetton (Gigant) they managed to gain the upper hand until Hyper Zetton (Gigant) managed to smash them around. Dyna revived him and they managed to destroy Hyper Zetton (Gigant). The Kaiju then morphed into Hyper Zetton (Imago) and proceeded to defeat the three Ultras. Not giving up, Musashi, Asuka and Taiga transformed into the giant of light, Ultraman Saga. Hyper Zetton (Imago) created multiple monsters with multiple Sphires. All hope seemed lost until Ultraman, Ultraseven, Jack, Ace, and Leo appeared to fight the monsters while Saga fights Hyper Zetton (Imago). They eventually equally match it but, with the help of Team U, Saga managed to defeat Hyper Zetton alongside its master with the Saga Maximum, After the battle, Musashi and Cosmos returned to their home universe.
After Leugocyte's attack on Planet Kanon, Ultraman 80 gathered a strike force consisting of himself, Ultraman Neos and Ultraseven 21 to track down Leugocyte, fighting it on Planet Feed. Suddenly, Absolute Tartarus appeared with Reibatos, getting the latter to revive a Gymaira to interfere with the battle. The Ultra Heroes were in a tight spot until Ultraman Cosmos and Ultraman Justice arrived as backup after picking up unusual energy readings, giving 80 an opportunity to finish off Gymaira and return to helping the others fight Leugocyte. They eventually defeat Leugocyte but are suddenly attacked by Absolute Tartarus, who ambushed them. Fortunately, Cosmos and Justice fuse into Ultraman Legend, forcing Tartarus into retreating. After the battle was over, Cosmos informs the others that it was Tartarus who was responsible for the strange energy he and Justice had detected in this universe, as well as their home universe and the Future Earth World where Cosmos once helped Zero.
Ultraman Cosmos participated in the Dark Spark War but this time he fought not only alongside Ultraman Justice, but with other Ultras that came from other universes and their allies against the forces of evil. In the middle of battle, Dark Lugiel turned every Ultra present, alongside their allies, monsters and aliens into Spark Dolls. With the war over an unknown warrior appeared and faced Dark Lugiel but like others he also turned into a Spark Doll. The location of Cosmos' Spark Doll is unknown.
After Ginga defeated Dark Lugiel, Cosmos and the rest of the Spark Dolls return to their original forms and return to their own universes.
When Etelgar arrived on Planet Juran, Ultraman Cosmos fought him in his Corona Mode but Etelgar was too strong for him. He tried using his Naybuster Beam to blast him, but it didn't work and Ultraman Cosmos was defeated reverting back to his Luna Mode. Arena sealed Ultraman Cosmos in a mirror, separating him from his human host, Musashi. Cosmos and all the Heisei Ultras were freed thanks to UPG and they all teamed up with Ultraman Ginga and Ultraman Victory, and later assisted Gingavictory against Etelgar.
After being contacted by Shin Asuka about the Bezelb and Psychi threat, Musashi transformed into Cosmos on Planet Juran and traveled to the universe where Alien Kanon Amate and Shohei lived. Arriving on Planet Kanon, Cosmos is surrounded an army of Bezelbs and a Kugutsu Verokron. After dodging some energy bullets and rockets, Cosmos tried to purify Verokron but it did not work. Cosmos landed on Planet Kanon and met Amate as Musashi.
Despite his apparent absence during Omega Armageddon and Crisis Impact, Cosmos' power was replicated by Ultraman Hikari into a Little Star that inhabited Moko before it was salvaged by Riku Asakura as Cosmos Capsule, allowing Ultraman Geed to assume Acro Smasher in conjunction with Hikari Capsule. Although Cosmos was far away from Earth at the time of the series finale, Geed's determination and courage in defeating Belial was strong enough to be perceived by the Ultra from Planet Juran.
The Absolutians targetted Cosmos on Planet Juran due to him being the key to legendary power, referring to both Ultraman Legend and Ultraman Saga, making Cosmos a danger to the Absolutians' quest. Cosmos changed from Luna to Corona and then Eclipse to fight them off, and they attempted to hold Lidorias hostage. In response, Cosmos used the Cosmium Beam to shoot through Lidorias and defeat the Absolutian soldiers.
