I have a question/concern about the Amiibos. Let's say a year from now, Mario Party has Amiibo support. Would I have to buy a specific new mario party Amiibo for that game? Or will my smash bros mario Amiibo work?
It's hard to say the extent of it.
-If it supports data writes you can pick one and only one game per Amiibo but that's not a guarantee the Smash Amiibo will be compatible.
-If it supports reads it should as long as the expected characters match