Perfection!! Giant Robo
Includes 3 stories:
1. Five Part side story by Mitsuteru Yokoyama that ran from November 1967 to March 1968 in Shogakukan Comics.
2. “New Giant Robo” manga made in July 1968 by one of Yokoyama's assistants for Second Grade Elementary Magazine.
3. “Fun Kindergarten” is one shot made in July 1972.