In the nature there are many ways of making animal hygiene and care for their beauty. The fish eat the algae that get into the skin of hippos, thus ensure their food and clean the skin of hippos. The same happens with their oral hygiene, the fish are responsible for clean the teeth of the hippos.
Your mission in this game is ensuring the beautification of the hippo mom.
Clean her teeth and take careful she does not close the mouth. We do not want you to be swallowed, correct?
When eating the algae of the foot Mom, be careful she does not step on you!