Just a hypothetical idea of a pokemon game that takes place before the Kanto games. One that has no HMs(since they weren't invented yet.) You use items to get across. All the pokeball types exsist but are more exspensive since they're new technology. Plus Legendary pokemon events! Along with that I thought of the return of the shadow pokemon idea, along with time travel. If you have questions or want to expand on this tell me your idea. I'd love to hear what you can cook up! (This game has nothing to do with generation 0. It takes place long after that like just a couple of years before Red & blue. Please keep that in mind.)