You are all alone and your home could be destroyed by aliens.So you must take your destiny in your hands and fight with the aliens.At first you may be weak and an alien ship could anytime blow you up,but winning level after level you can upgrade your weaponry with other powerfull extra weapons.Alien ships are different by appearance and weapons.They attack in many ways, with plasma bolts,they can lay time-changes,organize in formation in order to attack you.Every level is different so you can not get bored being occupated by developing new tactics of combat to burst their ships.The bonus levels help you with your fight experience.Your ship can be easily controlled by keyboard,mouse or joystick.Your progress is easily stored,there is music and sound FX,and being good in combat means first place in the Worldwide Hall Of Fame.So...will you give it a try?