In one episode of the second series, the Fenarinarsa Momo asks the other Momo about her pets. Then, a musical number where the pets sing about their personalities plays, and after this, the episode resumes.
Ear Worm: The original TV series theme song, "Love, Love, Minky Momo," sung by 1982!Momo's voice actress, Mami Koyama.
The second ending theme of the second series, Suki Yori Daisuki Minky Smile.
The duet between both Momo's in the 1991 series: bothversions
Macekre: La Ronde in my dream was adapted by Harmony Gold and Carl Macek. Most of the dialogue is altered and the opening scene is moved to the end and becomes a dream sequence, but the overall plot remains the same.
Moe: Considered by some to be the first moe anime.
Several elements in scripts Shudo wrote for Pokemon are recycled from Minky Momo. "The Ghost of Maiden's Peak" noticeably contains many of the same elements as The Bridge Over Dreams, and Pokémon: The First Movie has a similar ending to La Ronde in my dream.
Values Dissonance: Probably at least part of the reason why this never got released in America. While most of the series is totally fine for children, American networks would likely take some issue with the child heroine being suddenly hit by a truck and killed halfway in. And then the jokes that are made about it later in the series. It's also not exactly the sort of thing you can easily Bowdlerize out, being a major plot element that the rest of the series builds on.