You are a lone Harrier, with limited fuel to sustain you against two
to four attacking fighters.
The graphics show about a quarter of the total playing area, with
the rest displayed as a Defender-type radar display. Your remaining
fuel is also shown, along with the remaining number of air-to-air
missiles.
These two commodities can be replenished by landing vertically on a kind
of landing pad. There are five or six of these in the area, but they are
susceptible to being bombed by the opposition.
The enemy can of course shoot back. When they hit you, there's a very
good crash sequence showing your plane catching fire and dropping slowly
to the ground to explode in a shower of flames.
The 3D display of the ground is good, too, with refuelling dumps,
buildings, roads and of course the landing pads. Cars and lorries
drive along the wrong side of the road, though, and petrol is called
gas, hinting at American roots.
Sound effects make full use of the SID chip. Overall, this is one
of the best games for the C64 that I have seen.