The term "amiibo features" refers to a specific set of functionalities and capabilities that are unique to Nintendo's line of collectible figures known as amiibo. Full definition
Another cool new amiibo feature is exclusive gear available through scanning them. (nintendowire.com)
Tap an amiibo figure to the near - field communication (NFC) reader on the lower screen to enjoy amiibo features in compatible games. (amazon.com)
The answer might be amiibo, at least in part based on Kyogoku's comments: «In the past, Animal Crossing has only been Animal Crossing, but we thought that with the addition of Amiibo — how could we make an Animal Crossing game that would be fun by adding Amiibo features? (animalcrossingworld.com)