>>6992929The chips in the Amiibos don't really do much, they just say "hey this is a Peach" and record a little bit of information if needed. The game is the thing that is coded to respond to Peach in a specific way, and to send whatever information it wants
So they could do a new Peach Amiibo with the exact same chip, and the new Smash could do something wholly new with it.