The Güs are real plant experts and they have given the plants funny names with the letter U-umlaut. They have created secret recipes with different ingredients for each plant to heal them. These ingredients should not be mixed together. Only the right combination of crystals can work.

The healing crystals can be collected from certain open forest areas, but the trees are constantly moving. The opening to the forest patches is constantly changing, which makes the Güs' work more difficult or easier. All these changes can lead to unexpected encounters with forest creatures.