May is revealed to have won three Johto Ribbons.
Much like Misty's guest appearance in Enter Kasumi! Togepi and the Mirage Kingdom!! (2003) and Other Side of the Mirage! Togepi's Paradise! (2003), during which she met May for the first time, May makes a temporary return and meets Dawn for the first time.
May's Eevee is revealed to have evolved into a Glaceon while in Snowpoint City, and to have learned the moves Ice Beam and Iron Tail, respectively.
When Piplup's Bubble Beam and Blaziken's Fire Spin connect and combine together, Ash refers to Battle Dome! Fusion of Fire and Water!! (2005), during which Dome Ace Tucker used a similar attack against him.
In the English dub, Ted Lewis returns to voicing characters for the series in this episode under the pseudonym of Ed Paul, having been laid off with every other voice actor except for Jimmy Zoppi and Kayzie Rogers after the eighth season of Pokémon. This makes him the third of the former 4Kids main cast to return to the series, after Rachael Lillis and Maddie Blaustein (who returned for the Pokémon Mystery Dungeon: Explorers of Time & Darkness (2007) special). Lewis was part of the main cast on two occasions: first voicing James from Tai ketsu! Pokemon senta! (1997) to Pokemon riigu e no Michi (1997) and Tracey during the Orange Islands arc. Four episode after this, Lewis would return to the role of Giovanni becoming the first voice actor to regain a role following the switch.