You are surrounded by a horde of attackers positioned around the edge of the screen. They attack two at a time and try to dispose of your four lives.
You can move round the screen by using the keyboard and can fire your gun to kill the attackers.
Joystick control can be used, but for once I found that keyboard control was better. During the first few games orientation of your defender is a little difficult but experience soon finds your man darting around the screen bumping off the enemy.
After disposing of the first screenload of attackers a second lot appears, moving faster and worth more points. A bonus is added to your score if you avoid losing a life.
A straightforward game, ideal for children, who will no doubt play it for hours on wet Saturday afternoons.