The aim of the game is to remove as much as possible tiles with matching color. To do so you have to link 3 or more tiles with same color horizontaly or verticaly exchanging places of 2 adjacent elements. The more tiles you remove the more points and extra time you get. When some elements are removed, those who are above them fall and the top boxes are filled with randomly colored ones. So the board is always full. The game ends when the time expires.