Defend Pandora

In order to seize resources on the planet Pandora, humans launched an attack on Pandora. Pandora sent the most elite Mother-ship as their final defense. How much longer can Pandora hold? As the Mother-ship’s commander, the fate of the planet is all up to you.
1. firing missiles to destroy attacking enemy aircraft by click on the screen

2. only one missiles is required to destroy the basic aircraft

3. two missiles is required to destroy the gold aircraft