Anatomical Enigma

The Anatomical Enigma is a treasure that is unlocked when the player scans the Toad amiibo from the Mario series. It looks just like the amiibo, and is worth.

Collecting the treasure
After scanning the amiibo on the area selection screen (in any sector), the treasure will appear in one of the Secret Spots of the area. Then, the player has to retrieve the Anatomical Enigma in that spot.

Trivia

 * Olimar's notes references the inconsistency in the Super Mario universe regarding the Toad species' large heads being hats or part of their anatomy.