Use your arrow keys in order to control the shark. You will be given a choice of easy or hard mode, they change your speed. The small gift box will hide in places around the map, but not to close to the surface, and your objective is to find it. Once you find it, you will have the opportunity to continue playing or stop. Once you have decided to stop, your score will be shown. You must click the green flag to start, and to clear your score you must hit the space key.