Use the arrow keys to move around collecting dubloons. Each time you collect a dubloon, a mine will appear. You can get rid of mines by having them crash into each other and explode. Move your ship halfway in between them so they will reach you at the same time. Gradually move your ship away until they collide. Whirlpools may also appear. They can suck in your ship and the mines so make sure not to get sucked in or be in the path of the mines when they get sucked into he whirlpool.