【實用遊戲app】Fifteen|最夯免費app-綠色工廠好玩App

The aim of this game is to order the buttons in their natural sequence 1..15, leaving the empty space in the last position on the last line.A button can be moved to the empty space, touching it, only if it comes from a place adjacent to to the empty space.Touching the RESTART button will produce a random re-ordering of all the buttons, to start a new game.