Chromedome/Primax 785.06 Alpha

Voice actor: Hideyuki Hori

History
A small, human-sized Transformer from the colony planet Master, Chrome proved himself enough to be granted a large transtector body, becoming one of the planet's elite Headmaster warriors, Chromedome. Fortress Maximus's second-in-command and field commander, he was charged with leading a crack troop of Headmaster soldiers with about one personality between the four of them. Chromedome was notable for often being the guy in charge and being slightly brasher than the rest of this brash lot. Brasher than Armada's Hot Shot. That's pretty darn brash. Brash. He also picked up romancing Arcee when Rodimus was on walkabout for a new planet and Springer was apparently otherwise occupied.

Chromedome had a long history of animosity with Sixshot, dating back to when Sixshot killed his friend Abel before Chromedome became a Headmaster. Things got worse when Sixshot killed Ultra Magnus. The final straw came when Chromedome was forced to shoot his friend Jack after Sixshot planted a bomb in Jack and reprogrammed him to blow up the Battleship Maximus. He was finally challenged to a one-on-one fight to the death with Sixshot, but they were stopped by Daniel Witwicky, who had managed to open up Sixshot to the idea of aiding the Autobots.

The Headmasters manga
His role is similar to that in the Headmasters animated series. He is portrayed as being more of a leader and inspiration to his troops than his computer nerd counterpart in US comics. His head is a small robot, not an organic Nebulan.

Masterforce anime
Chromedome once relayed information to the Autobot Pretenders on Earth, updating them on his battles in space with Decepticon forces, namely those of MegaZarak, who would become BlackZarak.

Masterforce manga
Chromedome designs the Transtectors and the Master Suits for the Autobot Headmaster Jrs.

He shows up and fights along with other Autobots, but both he and Raiden end up getting beaten by Scramble 7. He gets beaten again with Brainstorm and several later by BlackZarak.