Yoshi's Woolly World features extensive amiibo support, adding extra content and features to your game. Here's what different amiibo do:

- Yarn Yoshi Amiibo (Green, Pink, Light Blue): Tapping a Yarn Yoshi amiibo (or any Yoshi amiibo) will unlock a unique Yoshi pattern based on that amiibo's color. Additionally, during a level, you can tap a Yarn Yoshi amiibo to summon a second Yoshi (Double Yoshi) to assist you. This second Yoshi is controlled by the CPU and can help collect items or defeat enemies.
- Other Amiibo: Tapping any other compatible amiibo (e.g., Mario, Link, Kirby) will unlock a unique Yoshi pattern based on that character's design. There are many character-themed Yoshis to collect!
- Save Mii-Yoshi: You can save your favorite custom Yoshi pattern (a Mii-Yoshi) to a Yarn Yoshi amiibo. This allows you to carry your personalized Yoshi to a friend's console.
Amiibo add a fun layer of customization and assistance to the game. The Double Yoshi feature can be particularly helpful for younger players or those struggling with a difficult section, providing an extra layer of support.