https://www.gamespot.com/articles/super-smash-bros-ultimate-introduces-new-ridley-am/1100-6459766/

Ridley from the Metroid series made a dramatic entrance into Super Smash Bros. Ultimate during Nintendo's E3 2018 presentation. On top of that, he's getting the royal treatment with his very own Amiibo figurine. Nintendo showed off the figure during its Nintendo Treehouse stream following the main presentation.

The Ridley Amiibo was flanked by a new model of the Inkling Girl, and two mystery spots. One of those spots is reserved for Daisy, who will be an echo character for Peach. That leaves one more Amiibo character yet to be revealed, possibly pending another new character announcement.