Misty's heart-shaped hair tie is a reference to the one she wore in Rokon! Breeder Confrontation! (1997).
Ash's team for this episode is Pikachu, Dragonite, and Gengar.
Brock's Croagunk remains outside of his Poké Ball for the entire episode.
This episode marks the first time a Banette is shown being born from an abandoned doll in any canon, as some of its Pokédex entries state
Brock's eyes are briefly seen open when getting Poison Jabbed by Croagunk while he hits on Nurse Joy.