Xenophobe
Game Description
Xenophobe is a home port of the arcade game of the same name where a team of engineers are dispatched to a number of space stations to exterminate the aliens which have taken up residence where they're not wanted. It obviously pays homage to the Alien film franchise.
While Xenophobe was ported to a number of home systems, the 7800 version is considered spectacularly bad, with poor graphics, terrible play control, and awful sound.