The spaceship in the game is an aircraft that is designed to travel in the atmosphere. The game begins with the Earth being invaded by an alien race. As the invasion progresses, the atmosphere of the Earth is poisoned, and the air is no longer suitable for human life.

The player is a member of the last remaining human race, the Air Force. They have to protect the Earth from the invasion, and they have to do it in the most effective way.

The spaceship in the game has a variety of weapons. In addition to conventional weapons, the spaceship has two laser guns and an energy cannon.

The game has four levels, and at the end of each level, the player will have to fight one more enemy.