Monstructor (G1)
- Monstructor is a Decepticon combiner in the Generation 1 continuity family.

Beneath the gibbous moons of Cybertron, in the great dark spaces of the sunless void, far beyond the realms of man's childish reachings, does the great dread Monstructor have his origin. A being that seems instinct with some fearful and unnatural malignancy, its form like a robot and a deep great shadow at once, his very presence is said to drain light and life from the world around him, feeding his ancient hunger. A palpable cloak of dread follows his movements, and the very sight of his summoning and formation has driven sane beings beyond the bounds of madness. All living things, mechanical or organic, decay and die at his merest touch.
Monstructor is the channel for an evil beyond the darkest Decepticon imagination, and far beyond the puerile concerns of the insignificant beings who make up his composite form. He longs for the day, foretold in darkness, when he shall be split asunder no longer, and will rise one final time, free to travel the stars, from world to world, extinguishing all life sparks, ravening for delight.
Monstructor is the combined form of six Pretender Monsters:
Fiction
Devil's Due G.I. Joe vs. the Transformers continuity

The Pretender Monsters had taken on the inhabitants of the undersea Autobot base as individuals; for a change of pace, they decided to destroy an attacking GI Joe force as Monstructor. The titan proved unstoppable at first, his energy-leeching fields draining enemy equipment and causing at least one pilot to instantly age before crashing.
Monstructor's triumph never came to completion, though, as the Joe laser squad targeted his head module, causing it to explode. The combiner robot collapsed into a shower of unconscious Decepticons. Black Horizon, Part 2
IDW comic continuity

Monstructor was the first gestalt. Created by Jhiaxus under the direction of Nova Prime, they were intended to be the ultimate fusion of mind and body: a vast amount of intellect combined with unparalleled strength. Unfortunately, they were driven into insanity by the merging process, and became monsters. After Nova Prime departed Cybertron in the Ark, Omega Supreme locked them in a dimensionally-displaced prison to live out the rest of their horrid existence. Eventually they escaped and tracked down and attacked Omega Supreme, but were defeated by Optimus Prime. Despite Omega Supreme's protestations about the dangers of gestalt technology falling into Decepticon hands, Prime had them taken into custody in an attempt to repair their shattered minds. Spotlight: Optimus Prime
The IDW interpretation of Monstructor uses Slog's beast-mode arms as an extra pair of Tyrannosaurus-esque appendages, horrifyingly reminiscent of the Beast.
Toys
- Monstructor (1989)
- Monstructor is formed by combining all six Pretender Monsters. Much like the earlier Transformer combiner teams, he requires the attachment of separate accessories, including his head, waist, fists and feet, to complete his robot mode. However, unlike earlier combiners, the separate pieces can be stored on the individual team members. They fit on the backplates of the Pretender shells. It is articulated at the shoulders and knees. As his individual components are not much larger than a Micromaster, Monstructor is by far the smallest of the G1 combiners, standing about the same height as regular toys like Hot Rod.
- Monstructor was the final Generation 1 combiner released by Hasbro, and the only one to not be released in a gift set in any market.
- This set of robot molds was also used to make the Dinoforce team.
Trivia
- Monstructor is one of the few Generation 1 toys that has no boxart. However, Dinoking did.
- In early solicitations from Hasbro, Monstructor was called "Titanus."

