The first screen of alien bombers are in an easy to pick off formation lined across the screen. That is, easy if you get your rhythm right. However, watch out for the space pods which land on your level and can blow you to smithereens if you run into them.
But there's no time for complacency - as soon as you've fought them off, the H wing fighters appear on the screen. These are both hard to dodge and at times seemingly impossible to blow up. And, after all this, you have to dock with your mothership to refuel.
All in all, it's an exciting game for the arcade addict with reasonable graphics and good sound effects.