All open to correction, of course. I've purposefully omitted Machine Robo Rescue and Mugenbine because I have no clue about either of them. Some 'assortments' have made-up titles - I've indicated where these are. If anyone knows what the assortment names are, or even if there are any, please let me know.

With thanks to Chris Olsen for his help!

|Machine Robo Era (1982-1986)|Revenge of Cronos Era (1986-1987)|Battlehackers Era (1987-1988)|CG Robo Era (1993)|

Machine Robo Era (1982-1986)

|Machine Robo Series|Machine Robo Best 5|Scale Robo DX|Devil Invaders|Big Machine Robo|
|Playsets|Machine Puzzler|Martial Arts Robo|Double Machine Robo|

Machine Robo Series

Where it all started. Small vehicles, around the size of a Matchbox car. Originally designed and manufactured by Popy before being taken over by Bandai. 55 figures were issued from 1982 to 1986, the majority of which were exported to the Gobots and Robo Machine lines. Due to the retail price of 600¥, the range soon became known as the '600 Series'. Packaging for the range was updated four times (the Popy 'silver' boxes, the Bandai 'diagonal' boxes, the Bandai 'spectrum' boxes, and the Bandai cards), and some figures were released in more than one style - similar to Gobots in America, successful figures would remain available for years.

Machine Robo Best 5

Giftsets of five '600 Series' figures. Bandai were pretty canny, making sure every figure had something different from the previously released version. Nearly all of these recolours were only available in Japan.

Scale Robo DX

Most likely a response to Diaclone's Car Robot series, Scale Robo began as an attempt to market the Space Cobra Psychoroid figure within the Machine Robo line. The toy was joined by six figures modelled on realistic vehicles the following year. Popy designed the first three before being reabsorbed into Bandai. Scale Robo were much larger than the '600 Series'.

Devil Invaders

The aggressors in the pre-Anime Machine Robo mythos, the Devil Invader drones were given a figure each, all roughly the same size as the '600 Series' toys.

Big Machine Robo

The BMR figures were larger versions of successful '600 Series' figures. In the case of the first two, the toys were almost literally scaled up. For the remaining three, just the vehicle modes were the same as (or similar to) the '600 Series' inspiration.

Playsets

An easy, catch-all place to put all the toys designed for the use of the smaller '600 Series' figures.

Machine Puzzler

The line's first combining figure, Machine Puzzler consisted of six vehicles - slightly bigger than '600 Series' cars - that had both individual robot modes and a single combined robot form. The figures were only issued in Japan as a boxed set, but are listed individually for ease of reference.

Martial Arts Robo

These toys were based on highly poseable (for the time) non-transforming figures. These then had transforming armour which could form a shell-like vehicle for this figure, similar to the Vehicle Pretenders from the Transformers line. These toys were produced around the point the Machine Robo line was revamped to tie in with the Revenge of Cronos Anime, hence the different serial numbers, and the use of the later-style boxes.

Double Machine Robo

Each Double Machine Robo consisted of two vehicle modules that could combine to form a single robot. The first batch featured totally independent modules, each slightly larger than a '600 Series' figure. The second batch, which came out alongside the Revenge of Cronos tie-in line, featured figures where both the alternate and robot modes were made up of two modules.