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Koji Onishi

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The name or term "Koji" refers to more than one character or idea. For a list of other meanings, see Koji (disambiguation).
Koji is an Autobot-allied human from the Robots in Disguise continuity family.
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Computers are coming your way!

When Predacons kidnapped Koji Onishi's dad, a famous scientist, that meant he got to hang out with the Autobots. Though he desperately missed his father, Koji befriended many of the Autobots and was a frequent guest at their headquarters, acting as a sort of cultural ambassador to help them understand Earth's societies and history. On several occasions he has had close calls with the Predacons and Decepticons, but even among that group he has made a new friend.

Contents

Fiction

2001 Robots in Disguise cartoon

Voice actor: Jason Spisak (English), Akiko Kimura (Japanese), Irwin Daayán (Latin American Spanish), Davide Perino (Italian), Felipe Drummond (Brazilian Portuguese)
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These glasses belonged to my grandfather, Captain Archibald Onishi.

Koji Onishi's life changed the day his father attended the first International Scientific Symposium in New York City. As Koji and his mom watched on television, the evil Predacon Megatron interrupted the ceremony, demanding Doctor Onishi. Koji was contacted by Optimus Prime, who arranged a rendezvous at Metro Park. When Koji got there, he was picked up by a fire engine—Optimus Prime, who explained that he was an Autobot from the planet Cybertron, on Earth to defend it from the Predacons. Optimus took Koji via the Global Space Bridge to New York where the Autobot fought Megatron. Koji was also introduced to the Autobot Brothers and encountered Dark Scream, Gas Skunk, and Slapper. The Autobots were ultimately unable to stop Koji's father being abducted. Battle Protocol!

Optimus took Koji on his first visit to the Autobots' secret underground headquarters and introduced him to T-AI. Koji attempted to greet T-AI with a handshake, at which point he discovered she was a hologram. He was, however, able to assist in foiling the Predacons' latest scheme to gain energy—when X-Brawn recovered an explosive device from Sky-Byte but had to dispose of it in a hurry, it was Koji's idea to get the device into the stratosphere which saved Metro City. An Explosive Situation

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HE REALLY LIKES BIKING!

Koji attended the launching of the Linear RFG bullet train, which was subsequently endangered by the Predacons. It was then that he was introduced to Team Bullet Train, who turned up to save the futuristic vehicle from destruction, and was able to act as a communications link to keep the Autobots updated regarding the situation on board. The train was ultimately saved and the Predacons chased off. Bullet Train to the Rescue He also tried to go cycling with his friend Carl, although the pair were stuck in traffic for most of the day with Carl's father due to another Predacon plan. Koji and Carl eventually did enjoy some cycling together, watched over by Optimus Prime who observed that he was glad Koji was able to distract himself from worrying about his father, if only for a short time. Spychangers to the Rescue

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Ginrai at 5th grade career day.

Indeed, Koji later went on an archeological expedition with Doctor Akase to see the Black Pyramid at the bottom of the sea off the coast from Metro City. The Predacons happened to be trying to tap an oil line near the pyramid, leading to Dr. Akase's diving bell being attacked by Sky-Byte. Koji was able to call in the Autobots and keep T-AI updated on the fight while the Predacons were successfully repelled and Dr. Akase's ship repaired. The Hunt for Black Pyramid

Side Burn took Koji to look at the Payuma ruins, which the boy had previously visited with his father. Also visiting the ruins was Sky-Byte, who'd been led there by memories extracted from Dr. Onishi, and boy and Autobot soon found themselves under attack. They were able to get to a higher level in the caves and contact T-AI, who sent Optimus and the rest of the brothers to chase Sky-Byte off. Afterward, Koji opened the box which Sky-Byte was interested in, to find a picture of himself with his father in which was hidden a microchip containing information which would be of great help to the Autobots in the coming war. The Secret of the Ruins

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Hey, do you think T-AI would... nah.

Koji was again hanging out with Carl on a visit to a car crushing facility (which Carl's father had helped with) when the Predacons turned up with Side Burn as a prisoner. He spied on the Predacons as they subsequently captured Optimus, and was able to help Prowl and X-Brawn sneak in to rescue their leader. Sideburn's Obsession He went for a ride on the steam engine Grandpa, which was also (unsuccessfully) attacked by the Predacons, following them misinterpreting information from a disk Dr. Onishi had intended for Koji. Secret Weapon: D-5

He spent a lot of time at the Autobot base, warning them about a diamond ruby on display at the International Exhibition Center which the Predacons might steal Mirage's Betrayal and helping them track down the newly arrived Autobot Skid-Z whose alternate mode scan of Auggie Cahnay's racing car had given him uncontrollable urges. Skid Z's Choice He was also introduced to Tow-Line, and was subsequently able to alert T-AI when he spotted Tow-Line towing away Rapid Run after being brainwashed by the Predacons. Tow-Line Goes Haywire

When the Predacons began attacking statues, Koji suggested the Cave of the Dragon which he used to visit with his father. As it turned out, this led to the discovery of the first of the O-Parts. The Ultimate Robot Warrior A short time later, Koji and the Autobots reviewed footage of past adventures in an attempt to discover where the Predacons' base was located. Hope for the Future

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Wow, I only have three more Pokémon to collect!

Koji's tales of UFO sightings helped lead the Autobots to Castle Peak where an Autobot ship had crashed 60 years before. The Decepticons Unfortunately they were unable to prevent the creation of the Decepticons, who attempted to prove themselves to Megatron by attacking Sherman Dam, which Koji was coincidentally visiting with his father's friend Doctor Bridget. The pair became trapped, and Koji contacted the Autobots for backup. The Autobot brothers and Team Bullet Train were able to defend the dam against the Decepticons, and Koji and Dr. Bridget were saved. Commandos

Optimus and Koji watched a shuttle launch together. Koji said he'd like to become an astronaut until Optimus pointed out it would involve a lot of hard work. Attack from Outer Space In a rare event, Koji was actually on a class trip to a power plant when the Autobot brothers turned up there following a false lead from Sky-Byte. The Fish Test During a baseball game, Koji and the rest of the crowd were surprised when it was disrupted by Rapid Run turning up in the stadium. Landfill

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We represent the lollipop guild.

Koji, Carl and their friend Jenny were all attending the opening of the CGA Tower when it was attacked by Predacons. Although the tower was in danger of toppling, Sky-Byte and the Predacons worked to hold it upright while the Build Team dug a new hole for it. The news coverage made it appear that Sky-Byte had actually saved the tower, and Koji and his friends began to regard him as a hero. Sky-Byte Saves the Day Koji joined T-AI and Optimus in viewing footage of past missions to get a better understanding of their enemies, while occasionally interjecting his on commentary on the events. Lessons of the Past

Things continued to look up as the Build Team finished up the Space Bridge on Earth. Not only did Koji now believe Sky-Byte to have turned a new leaf, but he was now confident that the Decepticons wouldn't be able to get away with any more evil deeds. Goodness's triumph over evil seemed assured! A Test of Metal Sky-Byte was later taken aback when Koji and a group of children rushed up to him to ask for an autograph. Ultra Magnus It was also about this time that Optimus' brother Ultra Magnus came to Earth and fought the Autobot leader. Koji monitored the battle with T-AI from the Autobot base and was able to spur the other Autobots to help Optimus. As they watched, the two fighting Autobots combined into Omega Prime for the first time to fight off Megatron and his Decepticons. Ultra Magnus: Forced Fusion!

Koji thought that the whole “Ultra Magnus thing” was really uncool… though he would get excited at the prospect of another Autobot being as strong as Optimus Prime. The Two Faces of Ultra Magnus Curious about the mysterious energy that Ultra Magnus possessed and channeled to power up the Autobot Brothers, Koji turned to T-AI and Optimus for answers. The Autobots explained to Koji the nature of the Matrix in Optimus's possession, and how strange it was for Ultra Magnus to be able to channel the artifact's energies as well. Koji suggested that whoever built both Magnus and Prime might have meant for them to share the Matrix. Power to Burn!

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"Dad, can I have another haircut?"
"No, it's anime tradition for father and son to have the same haircut."

Koji still worried about his father, although T-AI reminded him that the Decepticons' recent attack on an area Dr. Onishi had been excavating (which had led to the discovery of Fortress Maximus) Fortress Maximus must have meant that his father was still alive in order to provide the Decepticons with information. Encouraged, Koji went shopping for a birthday gift for his dad, buying a fishing lure as he and his father enjoyed going fishing together. While shopping he encountered Sky-Byte who was searching for Fortress Maximus. Koji tried to persuade the shark to help rescue his father, and was asking him to take a birthday present to the doctor when the Autobot brothers arrived and engaged the Predacon in combat. Sky-Byte threw the large container he was carrying to Koji, who opened it to find that the shark had been carrying around Dr. Onishi. Realising that Sky-Byte had rescued his father, he told the Autobots and Sky-Byte fled in panic. Koji Gets His Wish

With the recovery of Dr. Onishi, the Autobots were able to recover all of the remaining O-Parts. Koji cheered his friends on as they scoured the globe for the artifacts. A Friendly Contest T-AI volunteered to merge with them in order to extract the information they contained. She became trapped but was able to point the Autobots to the location of the Orb of Sigma. Koji insisted on tagging along out of concern for his friend when they went to retrieve it. Optimus was unimpressed and ordered him to stay on the surface with Side Burn, but when the Decepticons attacked, the pair were forced to enter the ruins anyway. Koji helped Side Burn recover the Orb from Megatron and held onto it as they returned it to Autobot headquarters. To his relief, T-AI was successfully extracted from the Orb. Peril from the Past

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Insert random anime quote here.

Unfortunately the Decepticons were able to obtain Cerebros, the key to Fortress Maximus, and, despite the Autobots' attempts to stop them, activated the giant in the middle of Metro City. Koji ran from the Autobot base toward the battle, believing he could help in some way. Maximus surprisingly obeyed his command to stop. Maximus Emerges The Autobots proceeded to try to work out why Maximus obeyed Koji—although Side Burn decided that it meant Koji was special in some way, Dr. Onishi pointed out Koji's only special ability was to eat three cheeseburgers in one sitting. Father and son then accompanied the Autobots into the desert, where Scourge had magnified the human portion of his bio-signature and was commanding Fortress Maximus once again. Koji tried unsuccessfully to override Scourge's control, but it was his father's plan of bringing a thousand children to the battleground that stopped the titan. Koji apologised for endangering himself but Dr. Onishi merely said he was proud that his son risked everything to help his friends. The Human Element

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Koji attempts to enter Super Saiyan form.

With Koji a target of the Decepticons and after at least one unsuccessful kidnap attempt, the Autobots decided to keep him under protection at all times. He was not keen on having an escort and swapped clothing with Carl so that he could go skateboarding elsewhere. Although the ruse was quickly uncovered by the Autobots, Carl was kidnapped by Sky-Byte and taken to Galvatron so that the boy could be used to control Fortress Maximus. When Koji found out, he accompanied the Autobots on a rescue mission and was able to help save Carl before apologising for putting his friend in danger. Mistaken Identity

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See the kids today, they have the BRAIN DAMAGE!

T-AI and Dr. Onishi continued to work on a way to control Fortress Maximus. Koji found his father working on the problem at home and volunteered to run and check if T-AI had turned up anything. Unfortunately he ran straight past Sky-Byte, accidentally leading the shark to the location of the Autobot base, which was subsequently assaulted by the Decepticons. Surprise Attack! Dr. Onishi later found his son paralysed by one of Galvatron's cyber-bats. Once he was released from the cyber-bat's control, Koji sent a plea to Optimus not to let Galvatron defeat him, giving the Autobot leader the willpower to carry on fighting. Galvatron's Revenge Koji then returned to Autobot headquarters to monitor the fight between Galvatron and Omega Prime. The Autobot leader's decision on one final confrontation at the Earth's core worried Koji, and he began contacting children over the Internet to encourage them to send energy to Fortress Maximus. Maximus rerouted the additional power to Omega Prime, forming the Matrix Blade with which Prime was able to defeat the Decepticon leader.

After the battle was over, Koji visited the Autobot base to find it empty. Returning outside, he found Optimus Prime who let him know that the Autobots were having one final look around before they returned to Cybertron. The Final Battle

Legends World

The Yūki Ōnishi of the Legends World was talking outside Tokyo Toy Show when he saw the Sky-Byte of other universe entering. Bonus Edition Vol. EX

Notes

Foreign names

  • Japanese: Yuuki Ohnishi (大西勇気 Ōnishi Yūki)
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