>>28715799not to mention, if I lived in Pewter City, I'd kind of would like a more reliable path to Cerulean City that ISN'T through a wild mon-infested, and narrow mountain cave.
other random ideas: like in the anime, you don't always confront gym leaders in their gyms, also playing on
>>28710230's suggestion of changing up the gym locales a bit...
Playing on the idea of the Radio Tower being infested by angry ghosts, Sabrina took a team of her best psychic students and went to try to quell them.
When the player ventures in they need to save Sabrina and her fellow psychics from being possessed by the ghost pokemon who overwhelmed them, and ultimately find a means to lay them to rest.