Rio

Nintendo lists this amiibo for the game but has not published what it does.

• Invite the character to your campsite and, eventually, to move to your island / Invite the character for photo shoots at Photopia / Unlock a special poster of the character / Invite the character to the Roost for a cup of coffee / Invite the character to Happy Home Paradise to design their vacation home
• Unlock special furniture items and a poster based on the card's Sanrio character

Community-reported

• Invite the character to your campsite and, eventually, to move to your island / Invite the character for photo shoots at Photopia / Unlock a special poster of the character / Invite the character to the Roost for a cup of coffee / Invite the character to Happy Home Paradise to design their vacation home
• Unlock special furniture items and a poster based on the card's Sanrio character

From Nintendo

• Invite the character to visit your RV campsite, give you an item, and/or move to your town

Community-reported

Nintendo lists this amiibo for the game but has not published what it does.

• Unlock a special costume

Community-reported

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

Community-reported

• Unlock an Animal Crossing-themed Mii racing suit

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

• Unlock an Animal Crossing pattern

Community-reported

• Unlock a character-based Mystery Mushroom costume

From NintendoSource

• Unlock music, frames, and figures

From NintendoSource

• Unlock a character-based Yoshi yarn pattern

From NintendoSource

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

From NintendoSource