Before starting, there are a few things we will need: Hey guys, this revamped guide will explain how you can transfer a Pokemon from the older Pokemon games such as Ruby/Sapphire/Emerald all the way to Ultra Sun / Ultra Moon or Pokemon Sword & Shield depending on the hardware and software you have at your disposal.
Please don't ask me how to obtain any of these. Take into account that this is based from my personal experience so I don't claim the contents on this guide as absolute and I am NOT promoting modified software/hardware that is not allowed by Nintendo. This guide is intended only for those who are using emulators so they can transfer their Pokemon throughout different generations similar to the process done on retail games. Please keep in mind that this guide will not cover Virtual Console transfers.
This guide will explain how to use emulators to transfer between the multiple generations of Pokemon games starting from Generation 3 to Generation 8.