Full list of all 14 METAL SLUG 3 trophies - 11 bronze, 2 silver and 1 gold. It takes around 3-4 hours to unlock all of the trophies on PlayStation 4.
Play all the routes
Ride all the Slugs
Complete Final Mission with no continue
Complete all the missions
Achieve over 3,000,000 points
Complete Mission 4 with no continue
Find and save Hyakutaro Ichimonji
Complete Mission 3 with no continue
Clear Mission 2 as a zombie
Defeat any boss in the game with the METAL SLUG ATTACK
Complete Mission 2 with no continue
Reach the icy cave's exit with the Elephant Slug
Complete Mission 1 with no continue
Start Mission 1