CheatCodes.com has the complete list of all METAL SLUG 3 Achievements and Gamerscores for X360, including all secret Achievements. All official X360 achievements for METAL SLUG 3 as of Wednesday May 4, 2016 are shown below, or you can print out our Printable Achievements Checklist that shows all METAL SLUG 3 Achievements and Gamerscores in a simple quick-reference format.
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.