How to download Miis in Tomodachi Life via Miitopia

Tomodachi Life: Living The Dream has a demo available.

Miitopia supports sharing and downloading Miis through its built-in features.

Miitopia Access Keys can be obtained online, though many keys may expire.

Example: Hank Hill can be downloaded with Access Key 4N8HCH0.

Miis downloaded to the Switch can be copied to the system level and become available system-wide, but Miitopia custom make-up (e.g., Hank Hill's forehead wrinkles) may not transfer to the system or Tomodachi Life; the article excerpt cuts off with "Crea".