Rebuilding a Town is an option in every Animal Crossing series game so far. Whilst the game is starting up there is two dialogues of continuing to play in the player's current town and one to view other options. When going onto other options it gives the player a choice to re-create the town. Doing so will cause Rover, Isabelle, or a villager depending on which game, will explain the meaning of rebuilding, along the lines of everything dissapearing and a fresh new canvas.
During the process of restarting the current saved file/town will all be wiped out, this includes villagers, house, money, furniture, all the progress the player has made ever in the game gets deleted and starts out like a new copy of the game.