Tasty Planet is a cool Friv game online about evolution. Scientists have researched a microorganism that eats everything on the Earth, they have named it the Grey Goo. Use your arrow keys to control the Grey Goo. Eat everything that is smaller than you. Watch the arrow, it will guide you to the largest entity you can safely consume. Avoid bigger entities, some of them can eat you! Start with tiny particles and grow bigger to be able to eat other things. Eat a specific number of pieces to complete each level. Later in the game, you will be able to consume some unbelievable stuff!