Sixtrain
- Sixtrain is an Autobot Micromaster combiner from the Operation Combination portion of the Generation 1 continuity family.

Sixtrain has surprising strength. Most of the Micromasters who comprise him are fairly mild-mannered and not exactly warriors, yet Sixtrain has the ability to become the most powerful of all the Micromaster combined robots... all due to his Matrix-fragment-fueled "Red Mode", which creates a burning aura around him and enhances his combat power to incredible levels. Even when he's not in this mode, he's a skilled fighter, with a dangerous punch and the "Train Gun" that creates train-track-shaped beams of light that act as laser whips.
Even though he is the elder brother of Sixliner, it's the younger brother who leads the Earth-based Micromasters.
He is composed of:
Fiction
Micromaster Collection
When the Autobot Micromasters on Earth found the Decepticons were digging near a dormant volcano, Sixtrain used his burning "Red mode" to defeat Sixwing and send the Decepticons packing, the sheer power he exhibited in battle wowing Sireen. Sixtrain recombined when Sixwing returned, intent on stealing the artifacts that the Micromasters had found there. Sixtrain! Activate Red Mode!! Later, after the Autobots had established Metrobase on the excavation site, Sixtrain rushed to help the newly-arrived Multiforce fight off Berserker Sixwing — but this turned out to be unnecessary, as the Multiforce's own combined mode Landcross was more than capable of defeating the Decepticon combiner. The Menace of Landcross's Combining Formation!
Operation Combination
Many years later, Sixtrain banded together with Sixwing and Guard City in a battle against the Decepticon Battle Gaia amidst a human-sized city. He and Sixwing were quickly bested, leaving only Guard City to fend off the villain. Big Pinch, Autobots!
Later, Sixtrain and all other Micromaster Combiners scattered across the globe were summoned to Earth's orbit to join Guard City in a last line of defense against Battle Gaia and the Jet Corps, who had fought their way past the Road Corps. Sixtrain went up against Battle Gaia-himself. The Decepticons' Attack on Earth!
Sixtrain, Sixwing, Sixbuilder, Sixturbo and Guard City eventually combined to form the "Autobot Scrum Combination". Combining the power of all twenty-nine individual Autobots, their unleashed energy destroyed Battle Gaia on the spot. As the Jet Corps fled with the remains of Battle Gaia, Sixtrain joined the other Autobots in gleefully waving goodbye. Conclusion
Toys
Operation Combination
- Sixtrain (Micromaster 6-Team, 1992)
- Japanese ID number: TF-05
- Sixtrain is a retool of the Return of Convoy combiner Sixliner, made up of six train Micromasters that combine via attaching to robot-mode kibble. When separated, this kibble becomes three different weapons; the legs can mount on San D-Go or Atlan's vehicle modes as a large roof-mounted cannon/thruster, the torso can connect to either footplate to form a twin blaster car pulled by any member of the team, and the gun, fists, and head all combine with the other footplate to form a weapons trailer. Sixtrain has limited compatibility with the "jet-kibble" style of Micromaster Combiner, really only able to swap out his arm or "back" components with others.
Micromaster Collection

- Sixtrain (Micromaster, 2003)
- In 2003, the entire Sixtrain team was re-released as part of the Micromaster Collection, in individual boxes with a number visible to show which mold was inside each box. For this release, all of the decals from the original version were replaced with paint applications. Sixtrain could only be assembled by buying all six components individually, he was never offered as a complete set.
- This version of the team was released without notable changes in the Hasbro Universe line as Rail Racer.
- Sixtrain Red Mode (Micromaster, 2003)
- Each case of twelve individual Sixtrain members came with two of them that were cast in solid red plastics, representing Sixtrain's powered-up "Red Mode". Of course, the packaging meant you didn't know which box had the red versions until you opened them up. All six team members were made available in this fashion.
Notes
- Sixtrain and Sixliner being brothers comes from Sixtrain's original Operation Combination bio... and was completely ignored in the later Micromaster Collection story. That the combined modes are brothers raises some questions about the component robots... do they consider themselves the brothers/sister of the entire rest of the other team? Or just of their counterparts/mold-partners?



