>>52811585I'm not the person you are replying to, but goddamn! What don't you understand about source code, kid? Gamefreak can modify it any way they want, and you are pestering some anon about "hOw???"
Literally how the fuck not? It's literally data, as stated previously. Gamefreak likely wouldn't even NEED the source code to make some sort of compatibility patch. It's not that complicated, Google it before you reply.