The main character of the game is a shark that needs to grow up. To help it to reach its goal, the player must feed it with the fish. There are lots of fish in the ocean but not all of them can be eaten. The shark can eat only the fish that is smaller than it. If the shark tries to eat bigger fish, it will be eaten instead. So, if the shar is eaten the player has to play the game again from the very beginning. Each eaten fish will increase the size of the shark so it will be able to eat bigger fish.