Shovel Knight probably has some of the best amiibo functionality in my opinion! 1. You unlock Co-op. (Though, soon it will be available without the amiibo) 2. You can customize Shovel Knight. And it's not just cosmetic change! You get new cool items like THE INFINIDAGGER!!!! ...and the new costumes are cool too! +You can save your stuff and also use it on the 3DS!

Nice! I would love to have the amiibo just for the multiplayer.

3. You get new challenges where you use the items! 4. It's just so dang cool. xD

I'm also so hyped for the upcoming update! Specter of Torment looks so awesome! You get to jump around ninja style! And gender swap mode. xD That's probably gonna be fun.