This episode marks the first appearance of The Moonlight Knight.
This episode included one of the rare instances in which the monster-of-the-day was destroyed by a Guardian other than Sailor Moon. In this case, it was Sailor Jupiter who finished off Falion with Supreme Thunder.
Makoto and Usagi are both revealed to have type O blood in this episode.
In the Original Dub the song used for this is Episode is 'Rainy Day Man'