This is the only episode of the anime that has been set in the Sevii Islands, although this was not part of the dubbed version.
The volcano that Ritchie and Silver visit is actually Mt. Ember, but it is called Mount Magma in the English dub.
Butch and Cassidy are revealed to own a Cloyster and a Tentacruel, respectively.
This episode aired between main series episodes Huntail and Sakurabyss! The Riddle of Evolution! (2004) and Muscle Battle!? Double Battle!! (2004) in Japan.
To date, this episode marks the last appearance of Ritchie in the anime.