From back of US NES edition box
FLY WITH THE BEST
In the future, combat pilots do battle in the air, under water, deep within the earth and far into outer space! Are you tough enough to join the Thunderbirds, the world's elite fighting force?
Five different fighter craft, like the Mach 20 Thunderbird 1 Rocket, the Neptune Hydro Turbojet, and the Fire Flash Atomic Plane. If you're a red-hot ace, you'll find dozens of secret weapons and special power-ups. War zones of the future include explosive volcanic deserts, deadly ocean depths, and the stark terrors of space. Lots of cool enemies, including poisonous space scorpions, fire-spitting volcanoes, mutant sea-worms, and dozens more!