Blame his innocence or naïveté for his opening his chest panel, thus allowing the Mayor to shoot his brain. After viewing all the color remake episodes, and everything of the 60s I could find on VHS, I must say that his innocent nature is his greatest weakness. He has more trouble with mere humans, than with aliens, other robots, monsters, etc. When I say 'more', I do not mean 'frequent', but rather "greater difficulty". The cunning masterminds are his greatest challenge. Although he appears to be a nine year old child, in the color remake, he is still a baby in terms of years lived, while in the 60s series, he had a few years with papa before being rejected and sold.

I just finished viewing the last available tape, now what am I to do?

I guess I must buy the Mangas.