Since "Smash X" also happens to be a popular search term for various fan-made mods and projects, I've broken this down into the most likely things you're actually trying to do. 1. Playing the Original Japanese Version (SSBB)
So, you're looking for a guide on Dairantō Smash Brothers X (often called dairantou smash brothers x iso download
If you specifically want the Japanese ISO to see the original "X" branding or play with the Japanese voice acting, here is the standard path: Since "Smash X" also happens to be a
, which add massive rosters and new mechanics to the Brawl engine. The Launcher Method: here is the standard path: