Full list of all 12 Metal Slug 3 achievements worth 200 gamerscore. It takes around 2-3 hours to unlock all of the achievements on Xbox 360.
Complete all the missions.
Complete all the missions without continue.
Achieve over 3,000,000 points.
Complete Mission 1 without any miss.
Complete Mission 2 without any miss.
Complete Mission 3 without any miss.
Complete Mission 4 without any miss.
Complete Final Mission without any miss.
Save President in the mission.
Save Hyakutaro Ichimonji.
Complete any mission, without getting power-up items.
Defeat the Boss Enemy while the player is Zombie.