New episode title(s) has/have been added to the database. Title: A Ruin with a View/Kodai Pokémon to nazo no gundan!/古代ポケモンと謎の軍団！. Please comment below! Thanks, your friendly PM.Net AnimeBot

It's unfortunate that Manga Gang never really turned out to be that big of an issue in the series. This episode set them up pretty good but there really wasn't any followup throughout the series. The climax for the two gangs didn't seem like it was that much of a challenge and story wise it ended up kind of bland.

I added my comparisons to the episode guide for this episode: http://www.pocketmonsters.net/episodes/278#Edits

Agreed. It's a shame that the writers shafted Magma Gang and Aqua Gang almost as much as Rocket Gang. There was improvement over Rocket Gang, but it was very little. Its plot ended literally at the middle of the series, and even the climax wasn't worth it.
Now that I think about it, Galaxy Gang was the only evil organization to get some justice in the series.