Description: Your top priority in Air Defence 2 is to defense the communication towers from enemies air raid. Destroy them before they get nears your tower. Click & hold space to fire while aiming using mouse cursor. Always aim a little before the planes as there is some delay on the flag in reaching the target. Once you earn enough money, you can choose to upgrade your tower or buy new ground support defense. Air Defence 2 is a fun and addicting free games.