Take your pick from the American AH-64 Apache, or the incredible Russian Havoc helicopter and burn your way through seven deadly levels of air-to-air and air-to-ground combat.
Armed with unlimited bullets, but a limited amount of missiles, you must destroy all enemy planes to get to the Gunship at the end of each evel, enabling you to land and recharge for the next mission.
In the hail of bullets, take care not to ground any ally planes or you'll lose bonus points and find your friends shooting at you too. Not a good move.
Along the way, collect as many bonus weapons as you can to recharge your armoury and then fly like crazy in this excellent aerial combat blast. It's well worth a look at.