Question about buying games for Citra

Is it possible to just buy a game and use it on Citra? I was wondering if it’s possible to get a copy of Monster Hunter Generations Ultimate and then emulate it afterwards somehow. I only use PC, so i don’t have any other consoles.

MHGU is a Switch game so it won’t work on Citra. MHXX(3DS version) works though but you need to find someone that has a hacked 3DS to dump the game for you or buy your own 2DS or 3DS(it’s like $40 on ebay).