Polluting Bacteria, The (S) (1987) - Amstrad CPC - Puzzle, Sci-Fi.

Year 2031, your city's chemical factory has suffered a terrible accident. An escape of the deadliest and most lethal gaz, which in turn serves as food for the most ruthless man-eating beasts known, makes the decontamination mission a tremendous potential danger for the risky hero assigned to such a mission. Oh, I forgot... the hero is you!