Metal Slug 5 Japan

A paramilitary syndicate known as the 'Ptolemaic Army' attacks a research installation that was developing the next-gen of Metal Slugs and with this, they have successfully stolen a disc containing Metal Slug top-secret data. Fearing that such information be used for their evil purposes, the soldiers Marco, Tarma, Eri and Fio received orders to recover the disk and put a end in this syndicate.