Xenophobe (Atari 2600)

Zee-no-phobe: fear of anything alien. At first glance, you'd never guess there was a living thing aboard the deserted starbase. But inside, it's alive and crawling - with the most gruesome horde of alien lifeforms in the arcade galaxy. They lurk around every corner, they blend into every background. They multiply, they metamorphize, they jump from room to room and screen to screen. Watch out or you'll get slimed! So get ready for the latest, most frightening action imaginable.