Until The Perfect Pear got a 9.6/10, this was the highest rated episode of the entire My Little Pony: Friendship Is Magic series.
Changeling Queen Chrysalis is the first villain that doesn't appear in any of the season premieres, as well as being the darkest, cruelest, most evil villain as of yet, more than Discord and Nightmare Moon combined. she's also the first villain to sing in the show, singing the song 'This Day Aria' and its reprise.
There might be a slight reference to The Little Mermaid when Shining Armor is hypnotized by Chrysalis. But there is a slight change: Chrysalis never used her voice.
Friendship Report: The Mane Six learned to trust their instincts.
Chrysalis is often compared to Roodaka from Bionicle as the sinister queen of an insectoid race. Both Roodaka and Chrysalis are voiced by Kathleen Barr.