Let’s be clear: Odyssey doesn't have undiscovered amiibo figures. The "new" bins circulating are from updated hardware revisions (e.g., the 2023 reprint of the Wedding Mario). While the UID (Unique ID) changed, the real gold is in the AppData/Game Data section.
Newer third-party controllers like the AmiiJoy now allow you to upload .bin files directly to the controller via PC, letting you cycle through the entire Odyssey wardrobe without carrying physical figures. Why People Hunt for Odyssey .bin Files super mario odyssey amiibo bin files new