Concept design of the Time Robo from Mirai Sentai Timeranger

>Time-travel vehicle
In the initial concept, the five vehicles combine into a robot which can also transform into a time machine resembling a train. Other ideas include the five vehicles transforming into robots as well, or the robot’s head having 3 different interchangeable types. At this early stage, Providus was not yet considered.

>The challenge of three forms combining
The five vehicles combine into a robot that can transform into two forms,
with the third form initially planned as an animal-shaped robot. The form of the robot here is directly inspired by Getter Robo.

>Completed 3D formation
The design closest to the one actually used. In the 4th picture, there is an idea that if you open the head of Time Robo Alpha, a time tunnel will appear inside.

This image was exhibited at the All Super Sentai Exhibition.