Air Defence

Press or click on a point on the screen to aim the weapon.  

The weapon fires when the click or press is released.

Shells will explode at the point where the screen was pressed or clicked.  

An extra shell is obtained for each bomb that is destroyed by either the laser or shells.  

The force field extends a short distance above the ground for a brief duration.  While it is active, it will destroy all bombs within its range.  

Shoot powerups to obtain more force fields.  

SPACE = Force Field/Start

ENTER = Instructions

L = Switch to laser

B = Switch to exploding shells