You are the pilot of a space ship and you have to travel across the
planet and into the caverns of this hostile and alien world.
Your fuel is limited. It can be supplemented by destroying the
force field projection dishes but beware of the heat-seeking missiles
determined to blast you off the screen.
You have bombs and laser with which to defend yourself and destroy
the dishes.
The instructions are clear but my fingers were not nimble enough to
cope with keyboard control. With a joystick you still needed the
return and shift buttons for the bombs and laser.
Once you have crossed the surface of the planet (This gives you a
little control practice) you enter the caverns with their restricted
space for manoeuvering. If you lose a life here you go back to the
beginning of the cavern not back to the beginning of the game.
Even if you still have all five lives when you enter the caverns,
it's not easy to get through them. I found this not as compulsive as
some other games but enjoyable all the same.