We get a surprising news related to the amiibo of Timmy & Tommy of Animal Crossing. Apparently, it keeps a special function in Super Smash Bros. Ultimate .
After scanning this amiibo in the game, you will unlock the store of these characters . Then you must go to the Spirits mode -> Collection -> Purchases. After this, you will see that you can spend points to buy objects and spirits. For now it has not been confirmed that this function can be achieved in any other way.
We put here for you a video of Nintendo Wire that shows it to us: