Until then, mobile suits (humanoid giant robots) had mostly been depicted as a whole "mass", but Iso thought that if it was a machine body, it should be separated from the skeleton (chassis), and realized an animation in which the robot's material and structure could be seen.
Before then, mobile suits (giant humanoid robots) were usually shown as a single unit, but Iso thought they should be divided into their mechanical components, separating the body from the chassis, and envisioned an animation that would reveal the robot's internal structure.