Inkling

• Invite amiibo-exclusive villager Viché / Unlock Splatoon-themed items in shopping catalog

Community-reported

• Invite amiibo-exclusive villager Viché / Unlock Splatoon-themed items in shopping catalog

From Nintendo

• Invite amiibo-exclusive villager Inkwell to visit your RV campsite, give you an item, and/or move to your town

Community-reported

• Unlock figure in an amiibo-exclusive pose of the character (requires Chibi-Robo amiibo)

Community-reported

• Give Kirby a Copy ability based on the character's abilities and a health item

Community-reported

• Unlock a Splatoon-themed racing suit

Community-reported

• Unlock a character-based costume

Community-reported

• Unlock a character-based costume

Community-reported

• Receive a random title or avatar item, up to five times a day. Each amiibo can be used once a day.

From NintendoSource

• Access challenge mode stages, and beat them to unlock exclusive gear and mini-games

Community-reported

• Unlock exclusive gear / Save favorite weapons, gear, and control settings / Take photos with the character or saved gear

Community-reported

• Unlock exclusive gear / Save favorite weapons, gear, and control settings / Take photos with the character or saved gear

Community-reported

• Receive special clothing

Community-reported

• Unlock a character-based Mystery Mushroom costume

Community-reported

• Battle and train up a computer-controlled Figure Player of the character

Community-reported

• Receive a sketch of the character from Wario which can be exchanged for in-game coins

Community-reported

• Unlock a character-based Yoshi yarn pattern

Community-reported

• Unlock a character-based Yoshi yarn pattern

Community-reported

• Unlock randomly assigned three-minute NES or SNES game scenes. Subsequent scans change the scene.

From NintendoSource