>>58951854Higher difficulty. opponents teams are higher levels. Have more pokemon, have better moves. You gain exp slower. Simple.
Different starter choices. No exp share. Remixed wild pokemon locations. Higher shiny odds. Tweaked story elements (seeing the same events from a different perspective.)
>>58951904How about an option to transfer some Pokémon from the previous save (to prevent cloning, it's straight up moved over rather than copied) with the option to reset it so that you can have it from the start without slaughtering everything (A Level 70 Metagross being transferred over would become a Level 10 Beldum.)