Raiden

Here is a gem from the 1987 series Transformers: The Headmasters. This is the gift set for the Trainbots. These figures were Japanese exclusives and unfortunately never saw the light of day in the United States. These six figures each transformed into train cars, and they could connect in their vehicle modes to form a full train. The figures could then combine to form the super robot Raiden.

One interesting note about these toys is that each figure is the same size as the six individual Constructicons. This is because the Trainbots were originally part of the Diaclone toy line which preceded the Transformers line. Like the Constructicons, the molds for the Trainbots were incorporated into the Transformers toy line and became regular characters. They never appeared in toy form or in animated form outside of Japan. The six Trainbots were regular characters in the animated series Transformers: The Headmasters which many fans consider to be the lost fourth season of the original Generation One series.