The Air Def is an adventure game that can only be played on a Single-player mode. Each level follows the journey of the young environmentalist, Lou Pearl. The objective of the game is to avoid the enemies on her journey by guiding her hot air balloon. These enemies include cigarettes, chemicals and emission of air pollutants from factories, burning of fuels caused by the cars, and other that causes air pollution. Any enemies that will hit her will decrease her health and condition of the hot air balloon. The player must also help Lou Pearl to acquire flying leaves that will be needed for buying different kinds of power ups and upgrades from the store. These power ups and upgrades will be a7up Down big help for the player to defend the character from the approaching enemies. Every time the player succeeds in guiding Lou Pearl for every stage, the map of the forest will be displayed and will show the progress towards the cure.