When we first opened the sea big fish games you start as a little fish, but you will begin to grow as they eat other small fish, and you'll be a big fish. The lower-right part you can see which species grows in fish food. There is much more chapter progresses, you begin to open up to the oceans. In the early stages of the game may sound very simple, but as it progresses, in the ocean, whales, dolphins and other fish will try to eat you. A perilous sea journey awaits you.