You can create schools by moving a tile or placing one during your turn. One player creates schools of creatures of the same color, while the other creates schools of the same type of animal. The larger the school, the more points you will earn at the end of the game.

In the coral reef, the habitat is becoming increasingly crowded. Soon, marine creatures will be packed in like sardines. Before there is no more space, you need to collect as many tiles of marine creatures of the same type or color to create the largest schools possible.