i actually wanted to play pokemon rumble world on citra (3ds emulator) today, but you need to make a mii to play, and i cant find anything on how to make a mii without dumping data from a real 3ds console. so i just decided to download a kirby rom lol
you are downloading cia files. if you dont want to do decrypting, you need 3ds files. you can get 3ds file for tomodachi life here https://romspure.cc/download/tomodachi-life-34940, choose decrypted format usa or europe