Pokémon Adventures
In the "Pokémon Adventures" manga, a mysterious boy called Emerald, who has a connection with Latias and Latios, comes to the Battle Frontier island to defeat the Frontier Brains. Todd, a character from the anime and the Pokémon Snap games, watches Emerald go through the frontier. Similarly, Platinum Berlitz challenges the Frontier Brains of Sinnoh alongside Looker in order to learn more about the Distortion World in a later chapter of the manga.