It Came from the Desert > NEC PC Engine

Help the expert geologist Dr. Greg Bradley as he hunts the site of a recent meteor crash to gather scientific data, but be prepared for the unexpected! He discovers that the meteor has mutated the ants to an enormous size and they will threaten the local population unless he can convince them of his stories by gathering enough evidence. Explore the town and surrounding areas looking for evidence to convince the locals to go out and kill the huge ants before they mate and it's too late!

For more awesome story games with great twists and turns you might also want to try your hand at Tekken 3, Rescue Copter and the amazingly cool Resident Evil 3 - Nemesis!