This lightning fast shoot-out takes place over a startling three dimensional landscape which undulates below as you pilot your heavily-armed Hoverplane, skimming across the surface on a death defying mission. Invading alien Seeders, Drones and Mutants are attacking the planet, polluting the surface with a creeping, poisonous red virus. Your mission: to halt this rapidly spreading virus before the land is defoliated. Throw the full might of your Hoverplane's powerful laser cannon and homing missiles against a variety of marauding spacecraft, each with its own deadly strategy.