Planet earth is attacked by missiles from an enemy planet. Your mission is to destroy these missiles.
Shoot the enemy missiles by clicking the mouse. Move your fighter using W/S keys, or arrow keys. If you shoot 20 enemy missiles you go to scene 2. If the enemy missiles hit your fighter its strength gets reduced by 5%. If the strength becomes zero the game ends. In scene 2 you encounter planets, which attract your fighter due to their gravity. If you go too near these planets your fighter crashes into them. In scene 3 you encounter land guns, which fire, at your fighter. Shoot at them to destroy them.