They ruin his newest war device, faces Morden, and discover that he has an alliance along with the Martians. Peregrine Falcon system reunifies along with SPARROWS to check out Morden’s most current planning. The activity complies with one month after the tournaments of Metal Slug 3. Lieutenant needs to complete a set of nine goals to end the war with the planet and crush the Dark Axis forces led by tyrant Venkar Amon. The gamers take the role of mate Rock who comes from a titular freedom-fighting group. Metal Soldiers is an action-platform game filled with operate and weapon aspects.