Tetsujin 28-gou

Heroman is an modern interpretation of Gigantor/Tetsujin-28. It's about a teen who remote controls a giant robot. In the case of Gigantor is via a control box and Heroman by a wrist control. Also in both series, they were out to save the world. Gigantor was the typical superhero vs. spies, evil organizations while Heroman first storyarc is to save the world from an invasion of alien cockroches known as Kruggs. Both series were also created by men who were giants their respective fields: Stan Lee of Marvel Comics fame and Mitsuteru Yokoyama who was influenced and even hired by Osamu Tezuka.