Metal Slug Defense

Several years after General Morden's coup d'état attempt was defeated... The scattered remains of the Rebel Army have become organized again. Military intelligence finds that General Morden is alive, and planning another coup d'état. The Rebel Army and aliens are revealed as behind the mysterious phenomenon happening around the world. To stop the rebels and aliens from reaching their goals, military intelligence musters troops and dispatches them around the world. (Metal Slug Wiki)