Every Smash Bros Amiibo (excluding third party) can give Kirby a certain copy ability. With all other third party or other Amiibo giving you a random ability. It should be noted that the Smash Bros Amiibos of Kirby characters are different than using the Kirby series Amiibo. With SSB Meta Knight and King Dedede giving you a random color change along with their power, while Kirby series Meta Knight, King Dedede, and Waddle Dee give the powers along with a color scheme matching the character. SSB Kirby gives you the Smash Ability, while Kirby series Kirby gives you UFO. This list has all the abilities granted from the Amiibo you can use. Note: Using Kirby Series Amiibo will also give you a Maxim Tomato and a random sticker each time you use them.

Ability	How to unlock
Archer	Duck Hunt, Pit, Dark Pit
Beam	R.O.B. (NES or Famicom)
Bomb	Bowser Jr, Diddy Kong, Samus
Circus	Mr. Game & Watch
Cutter	Toon Link
Doctor	Dr. Mario, Wii Fit Trainer
ESP	Ness, Lucas, Mewtwo, Shulk
Fighter	Donkey Kong, Lucario, Little Mac
Fire	Mario, Luigi, Charizard
Hammer (King Dedede Colors)	Kirby Series King Dedede
Hammer/Color Change	SSB King Dedede
Ice	Rosalina & Luma
Jet	Fox, Falco
Leaf	Villager, Olimar
Mike	Jigglypuff
Mirror	Palutena, Zelda
Ninja	Greninja, Shiek
Parasol	Peach
Parasol (Waddle Dee Colors)	Parasol Waddle Dee
Poison	Ganondorf
Smash Bros.	SSB Kirby
Spark	Pikachu, Robin
Stone	Bowser
Sword	Link, Marth, Ike, Lucina, Roy, Mii Swordfighter, Mii Gunner, Mii Brawler, Corrin
Sword (Meta Knight Colors)	Kirby Series Meta Knight
Sword/Color Change	SSB Meta Knight
UFO	Kirby Series Kirby
Wheel	Wario, Captain Falcon
Whip	Yoshi, Zero Suit Samus