Each round lasts ten seconds. During this time, you must move the gold cursor onto a colored square by clicking which one you would like to move to. After time is up, one square will sink into the void, eliminating all cursors touching it. If an alarm sounds at the start of a round, one square will shatter into pieces, permanently removing it from play instead of just sinking it. Your aim is to survive every round, or just be the last cursor standing, whichever you feel like.