Harrier Attack II is a sequel to the popular 1980’s game by Durell Software,
Harrier Attack.

Flying your Harrier jump-jet you rid your colony islands of enemy invaders
over a series of missions. In each mission over the first two islands you win
new equipment, weapons and skills. Over the third island you use the new
weapons and skills to achieve specific objectives. In the final mission you
also control an additional harrier to help regain total control of your
islands.

The game is a 3d side scroller and uses a key-code system for performing
special moves with the Harrier.