Dororon Enma-kun/YMMV


 * Ear Worm: MERA MERA MERA MERA MERA MERA MERA MERA
 * Sung by Hot-Blooded song specialist Masaaki Endoh, no less.
 * Jerkass: Enma, in the 2011 anime.
 * Older Than They Think: People surprised that Go Nagai is involved in such a ludicrously raunchy show probably shouldn't be: just look at his manga from the 70s.
 * Unfortunate Implications: Enma Daiou-sama looks like he loved his nephew a bit too much in episode 2.