Yeah, so it's confirmed now. The Mega Man Amiibo is compatible with Yoshi's Woolly World. Touching your figure to the Wii U Gamepad unlocks a Mega Man pattern for everyone's favorite dinosaur. Super fighting dinosaur.
Compared to the other unlockable skins, this one is really quaint. Very simple, honestly. But hey, it's pretty cool to see another major Nintendo title giving Mega Man a nod.