Set off to a space journey and improve your shuttle. Your battle machine has five main places where you can put weapons. The weapons can be bought. Be careful and not drag the equipment from the slots and then release the button or you lose the hold thing. Every mission keeps some new thing as new enemies, etc. To buy better weapons and equipment you have to shoot down as many enemies possible. Some ships use homing missiles, which are very unpleasant. The new things you buy can be taken even if you don't have the higher level. The game offers great graphics but in later levels the yes can hurt.