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==In the manga==
Ash and Pikachu manga, The Electric Tale of Pikachu manga, Pocket Monsters HGSS Jō's Big Adventure manga, Pokémon Pocket Monsters manga, Pokémon Zensho manga}}
===In the Pokémon Adventures manga ===
In early chapters of [[Pokémon Adventures]], Gym buildings were likely to be seen only when a character challenged the [[Gym Leader]], as the building would host their Gym battle. In particular, Roxanne's Gym in [[Rustboro City]] appeared to be retractable, the building acting as both an examination hall and a battlefield.