Player controls a ship that must infiltrate the five levels of the Scramble system and destroy the Base in the sixth.

Levels 1-3

The first level has the player over a decidedly hilly terrain. A player must dodge or destroy enemy missiles shot from the ground. The second level is inside a cavern. The quarters are not tight, but the swarms of enemy saucers make maneuvering difficult at best. A player exits the cavern and is assaulted by a storm of fireballs in the third level. Fireballs are fast and indestructible and must be manically dodged.

Levels 4-6

The fourth, or City level flies the player over a large metropolis. Missiles fired at the player from the tops of buildings again become a threat. The fifth level sends the player into obnoxiously tight machine tunnels. Pilot error is the only though formidable enemy. The final level has the player make an attack run on the Base, defended only by its position in a deep valley. After the destruction of the Base, the player begins again.

Gameplay

Gameplay is further made diff by the player’s ship’s consumption of fuel. If the player’s ship runs out, it crashes into the ground below. Fuel is replenished by the destruction of the fuel tanks that liberally dot the ground during the levels. Each time the player destroys the Base, the ship’s fuel consumption increases, dramatically increasing the challenge.