[hormiga_electrica]

Sigo sin entender que la serie se llame "Dororo" cuando, en general, la historia se centra más en Hyakkimaru que en ella, pero, bueno, los creadores sabrán (?).

Creo que es por algo que menciona la wiki:

Because the original manga series was cancelled before Tezuka had a chance to shift the focus towards Dororo's "coming-of-age" story as he had originally planned, most of the plots revolved around Hyakkimaru's battles with supernatural monsters. This caused viewers to consider Hyakkimaru as the main character and from episode 14 onward, the series was re-titled Dororo and Hyakkimaru (どろろと百鬼丸). The early cancellation of the manga series also meant there were not enough stories for the required number of episodes, so episodes 14, 15, 18, 19, 20, 23 and 25 were original stories developed specifically for the television series