It would be very easy to assume from the title that this is yet another night simulator but not so. It is a strategic flying and shooting game where you take off in your Harrier jump jet then increase altitude to attack enemy fighters and bombers which appear over the horizon to shoot you or your planes on the ground.
A fair amount of manoeuvring it possible with control for speed and height, though I tended to stay at one altitude and let the planes come to me, firing my cannon all the time!
This I found to be one of the best plays especially if you could stay to the left of the screen.
The screen is well laid out and there are enough levels for a range of ages to enjoy the game, including a very simple level for children (or reviewers!). The side scroll action is a little slow but this may be due to hardware rather than software difficulties.
The only quibble I do have is that the jump jet can accelerate off the right of the screen to reappear on the left. I would have expected the scroll routine to move faster. Exciting and quite addictive.