Kiloton

Kiloton is a Decepticon from the Japanese Generation 2 portion of the Generation 1 continuity family.

A homophone pun--
Did somebody kill a ton?
Wait... haikus don't rhyme...

Kiloton is a thoughtful and introspective bot, a kind Decepticon who became one of Megatron's close friends.

Fiction

Legends comic

When Megatron was recovered from Straxus's custody by the Autobots, he was healed with nucleon and nursed by a friendly Decepticon. This series of events led Megatron into declaring the peaceful Cybertron Alliance. However, things took a turn for the worse when Megatron's friend went to Earth as a peace envoy and was murdered by untrusting humans. This angered Megatron, who then promised he'd use force to protect his people, reigniting the war between Autobots and Decepticons. LG-EX Metroplex

When Megatron later took over Tera-Kura Co. in the Legends World, the local Waspinator told his own Megatron a recap of Megatron's life story, including the time he lost his friend. LG13 Megatron G1 Megatron's loss would inspire him to declare a refusal to hurt another one of his subordinates forevermore. LG63 G2 Megatron He would again speak of him to explain his refusal to fight back against Dai Atlas LG-EX Daiatlas and in announcement that he was leaving the restored Legends World. Epiloge

G-2 story pages and pack-in manga

Though no Cybertronian had been hostile to humans since the ratification of the alliance, Megatron's friend was attacked by the military and swiftly killed. In his grief and rage, Megatron dissolved the Cybertron Alliance and ignited the G-2 Wars. G-2 Part 3

Ask Vector Prime

By another account, Kiloton was descended from Quintesson models designed for high-level tactics and strategy and was one of Megatron's earliest recruits. He and Megatron became close friends, and perhaps more. He was seriously injured during an attack on Ultrix and sent off-world to convalesce. By the time he was restored to health, Megatron had gone missing, buried for millions of years on board the Ark. Kiloton traveled the galaxy as a military consultant. This he tired of, and he became a scholar and a force for peace.

When he eventually learned of Megatron's revival, he made haste to Cybertron and the two lovers very close friends reunited. This made Pretender Starscream jealous, especially since he had been having his skidplate handed to him by Bumblebee, Grimlock, and Jazz. Starscream tricked him into going to Earth by playing on his guilt for missing out on so much of Megatron's recent history. The people of Earth, who had only recently suffered an invasion at the hands of Scrash, were skeptical of the Cybertron Alliance, so when Kiloton showed up at Moscow unannounced, the USSR military didn't hesitate to mobilize. Ask Vector Prime, 2015/07/29

In a different universe before his demise, Kiloton scanned a gun as his alternate mode, no doubt influenced by Megatron's first choice of Earth mode. Ask Vector Prime, 2015/07/29

Notes

Boy howdy, am I ever NEVER getting released as a Transformer!

• For twenty years, Megatron's friend only existed as an image in the G-2 story pages. Absolutely nothing of the text surrounding the image makes mention of him or otherwise provides the image with context. Why was he on Earth? Why did he get attacked by humans? Why did he get killed? Why does his death bother Megatron? Did his death influence Megatron's choice to reignite the war? Ask Vector Prime would eventually explain the image, while Legends had its take a few years later.
• Ask Vector Prime would also declare that the MC-11 Gun Robo S&W Magnum 44 toy from the Micro Change line represented this character.
• "Kiloton" seems to be a play off of Megatron's own name. Megatron's name hearkens to "megaton", making "kiloton" an obvious nod. It was also a nickname Impactor used to go by in 2005 IDW continuity, in which he was also a close friend of Megatron's in the past.