Metal Slug Cheats
Metal Slug cheat codes, tricks, hints, and walk throughs.
Secret Prisoner
In the first mission, after you blow up the wagon with bad guys coming out, you'll pass a building with one or two cleraly-visible prisoners (depending on how many players are playing). When you get between that building and the next, look up and you'll see a pair of legs hanging down. Shoot it and a prisoner will fall down. Save him, and he follows you around wherever you go until you lose one life. He is invincible and shoots Street Fighter-like fireballs that home into the enemy. He also gives you lots of bonus points if you finish the mission with him still following you.
