Dororo

is a 1969 anime television series based on the manga of the same name by Osamu Tezuka. In 1968, in order to pitch the series, Tezuka created a 13-minute full-color pilot which summarized the story Hyakkimaru's birth and upbringing and meeting with Dororo, and an abbreviated version of The Tale of the Monster Bandai. The series was produced in black and white coloring due to budget cuts, but made the demons look more weird and menacing.