Can you free your planet from entrenched alien forces who have built cities underground?
First dive from outer space to the underground space tunnel at bottom right. Your three shields won't last long unless you are quick, even at the lowest of six skill levels.
Dive into the alien fuel dump maze, fill up and on into the subterranean tunnel. Peculiarly, you can gain points from 'active' space mines while the 'inactive' dispose of you (as do tunnel walls, floor or defence stations).
At last you come to the alien city. One shot into the hearts of the reactor returns you a hero of your people.
Colour and sound are well used but not spectacular. There are one or two rough edges - some jerkiness of movement and at times control is not very
responsive.