Originally scheduled to air on Children's Day itself, on May 5, 1998, but was rescheduled in the aftermath of "Electric Soldier Porygon."
Due to it being rescheduled after the Porygon incident, this episode is considered a part of Pokémon: Adventures in the Orange Islands, even though the episode is still set in Kanto. Despite this, the English opening theme is still Pokémon Theme until the end of the Kanto arc.
Misty's Horsea is revealed to know Bubble.
Starting with this episode, the dialogue of the Who's That Pokémon? segment sounds different from the previous episodes (unless a Pokémon has already been used in a segment). Also, this is so far the only episode in which the Pokémon featured in the segment is a Meowth that is not Team Rocket's. The next time a different Meowth appears is in Pokémon Certification Test!? (1998).
Depending on the version, either Ash or Brock reference the events of Fierce Fighting! Pokémon Girls' Festival! (1998) in this episode. In the Japanese version, Ash reminds Misty that Children's Day was originally designated to boys and that Misty already had her Princess Festival a little while back, with Brock backing him up. In the dub, Brock was the one who points out Misty having already done the Princess Festival while Ash reminds her that they still need to get the Volcano Badge. Similarly, Misty when responding to their comments originally pointed out that anyone can celebrate the holiday currently, while in the dub, she mentioned she was still tough before demanding they play.