Metal Slug 3 is the fourth installment in the Metal Slug series,
following Metal Slug, Metal Slug 2 and Metal Slug X.
Marco and Tarma are back to blast their way through another
action-packed adventure, picking up various weapons along the way. The
Slugs are also back and more colorful than ever, with Slugmariners,
Drill Slugs and Elephant Slugs joining the original Metal Slugs and
Slugnoids. As with previous titles, there are hidden items to be found
and POWs to be rescued, while a branching map lets players take a
different route to the end with each play-through.