Eat several fishes that are smaller in size than you to grow bigger. The more fish you eat, the bigger you get. Your mission is to survive in this big and deadly ocean by growing and domination all other sea animals. Try to avoid and dodge bigger fishes as they might eat you up. Just use your mouse to give directions to your fish and move it closer to small fishes. The growth bar is shown on the top right corner. When the growth bar is full, you will clear the level. You will be attacked by several sharks and bigger sea animals, so keep an eye out for them at all times.