Momotaro Dentetsu: Showa, Heisei, Reiwa mo Teiban! is giving the long-running series a revamp in the art department. That's mostly due to necessity, as Takayuki Doi, the original artist for the series, has since moved over to Bandai Namco. Shoji Masuda, developer on this new installment, recently talked a bit about the change.
“Honestly speaking, since Doi left for a rival company (Bandai Namco Entertainment), we can’t use the same style of character design. Both Doi and ourselves are in an awkward position. Oh, and one more thing, since it’s been 10 to 20 years since Momotaro Dentetsu first debuted, I feel it’s also a good time to freshen things up with (Puyo Puyo illustrator) Takenami-san. So I guess things are still positive for us.”