Prince Planet (Yūsei Shōnen Papii 遊星少年パピイ) is an anime series produced between 1965 and 1966 by Television Corporation of Japan.
Synopsis
A council of the "war-free" worlds decides to give Earth a second chance by sending Prince Planet to fight war and evil-doers. While on Earth, he disguises himself with a family who calls him Bobby. When his powers are needed, he transforms using a powerful medallion that he wears on his chest. He uses his super strength and cunning in order to defeat all of those who threaten his adopted home.