Dororon Enma-kun Meeramera - 9/10
Meeramera isn't really a show for everyone, hell it'd be hard to recommend it to most anime fans, but it's gold for Go Nagai fans. Each episode loosely adapts a chapter from the 1973 manga, Dororon Enma-kun, while also throwing in tons or references to 1970s, Japanese pop culture and other Go Nagai works, such as Mazinger Z and Devilman.
Meeramera's story is pretty typical. The head of Hell, Enma the Great, sends his nephew, Prince Enma, along with his two friends, Princess Yukiko and Kapaeru, to unleash judgment on mischievous demons living in the human world. The story isn't really what makes Meeramera great, though it does have its moments; it's the series’ sense of humor that makes it worthwhile.
The series' humor is outlandish and adheres to the tone of Uncle Go's original work. To give an example of just how outlandish Meeramera's humor is, there is an episode where the Demon Patrol fight a demon named Fatty the Kid that becomes enraged when he sees skinny people. He then proceeds to transform the entire human population into globular masses with a huge case of the munchies. And in doing so, he brings about world peace, but Enma destroys him anyway and reverts everyone back to their old selves.
Aside from that, the show is also pretty perverted. It was made to appeal to people that grew up in the early 70s and watched, or read the original Dororon Enma-kun. It's definitely not for kids.