Baby Godzilla first appeared in the 1993 film Godzilla vs. Mechagodzilla II. Baby Godzilla's egg was found on Adona Island with a hatched Rodan egg. The Rodan had since looked after the unhatched egg. Godzilla himself looked to have interest in the egg, but Rodan fought Godzilla to protect the egg. However, scientists took the egg during the fight and Godzilla then went to Japan to get it back. The egg hatches into a baby Godzilla and scientists learn that it has a second brain in its leg, so Godzilla must have one there as well. Rodan soon fights Mechagodzilla and loses, Godzilla appears soon after and gets hit in his second brain, nearly killing him. Baby Godzilla's cry awakens Rodan and it gives Godzilla its life essence, thus allowing Godzilla to destroy the mech. Then Baby Godzilla and his new father swim off to sea to find a new home.