(It goes without saying that this spoils a good deal of Yoru no Yatterman / Yatterman Night, so watch the series first if you’re interested, or check out what Doku-chan did in prior Yatterman media)

For the most part Dokurobei is mentioned in passing throughout most of Yoru no Yatterman / Yatterman Night. However, his presence is hinted at from the beginning of the first episode and the ominous looking skull shaped moon (normally a gag from the end credits of prior Time Bokan series, here not so much.)

He shows up in person on the throne of the Yatter Kingdom, “celebrating” the arrival of Leopard and her friends. Confused and unaware of Dokurobei’s origins and his nature they question how he is there and how he is still alive. After Dokurobei explains his past to the group, he states present. He is “Lord Yatterman”, the ruler of the Yatter Kingdom and the cause of so much pain and suffering.

Instead of being a skull shaped stone like before, Dokurobei somehow gained an actual, tall humanoid form .His mustache now goes down his face (or it’s part of a mask), the glasses have been traded in for a monocle, and he now has grey hair with a patch of black sticking out, although the tuffs remain intact. His personality and mannerisms are the same, although played in a darker light.

Somehow, both the original and 2008 happened and the Yattermans’ meddling in the former led to the latter show apparently being Dokurobei’s attempt at revenge towards them (even though are clearly the only characters who aren’t the same in both versions, and was seemingly indifferent to them as well).

Constant failure led to Dokurobei taking matters into his own hands and going all out on Earth itself, wiping out a good deal of it’s population, shattering the moon, banishing the Dorombo gang, and defeating the Yatterman. (whether or not he flat out killed them is never specified)

This wasn’t enough for him, and not only did Dokurobei pose as the Yatterman to taint their reputation and enslave and break humanity under his grip, but he also used propaganda to blame the Dorombo gang for everything bad and that the oppresive Yatter Kingdom, the only inhabitable place on Earth that he rules, is the people’s only salvation.

For some reason being split into four pieces and surviving for eons like that doesn’t mean Dokurobei’s immortal, so to maintain his immortality he has several people work their lives away at a factory to give him power, and plans to exhaust every last human being to death.

To that end, he created robotic shells of the Yatterman and their mechas to serve as his army, and brainwashed and rewired twelve innocent folks into his personal “Yatter-Guardian Gods” to maintain his law and order.

For old time’s sake, Dokurobei offers Leopard and her friends. But knowing that they wouldn’t accept the offer, he quickly refutes and decides to throw them in prison.

After they barely manage to escape, Leopard, Voltkatze, and Elephantus hold off the Yatter-Guardians while Galina and Alouette, taking up the mantle of Yatterman and onboard a newly built Yatter-Wan, proceed to fight Dokurobei, who grows to a colossal size to fight back.

After a long and tense struggle, the new Yatterman are able to strike down Dokurobei, seemingly ending him and his chaos once and for all.