Here is the full list of all 43 METAL MAX Xeno trophies - there are 26 bronze, 13 silver, 3 gold and 1 platinum.
Acquire all other trophies
Destroy 1 SoNs
Arrive at the Atrium
Save Toni
Save Dylan
Arrive at the Electric Gate
Take the Liburo Dome books to the Iron Base
Save Ittica
Open the treasure chest at the top of Tokio Tower
Install a Cherbourg and have a successful test
Open the shutters at the entrance of U-T Shibuya South
Reach the Underground Desert
Stop all drilling equipment around Mishuku Base
Travel across U-T Shinagawa
Make the Extinction Meter reach 0
Register all Bester Points
Defeat 8 or more SoNs
Defeat Catastropus
Defeat each SoN at least once
Defeat 100 enemies in Shooting Mode
Defeat 1,000 enemies in Shooting Mode
Unlock all songs at the Juke Box and play each one at least once
Acquire 4 types of Nephtech bodies and 3 types of parts (at least one of each)
Defeat 100 enemies
Defeat 1,000 enemies
Defeat 3,333 enemies
Defeat 10 or more WANTED monsters
Defeat 20 or more WANTED monsters
Defeat all WANTED monsters
Defeat 20 named monsters
Record a DPT of 5,000 or more
Distribute Ace Points 10 times
Distribute Ace Points 30 times
Reveal the entire World Map
Find and acquire 100 buried items with the metal detector
Raise a character's level to 91
Raise the Iron Base's technology level to 8
Max out the ranks of one job
Max out the Nephilim rank of one piece of Nephtech equipment
Acquire at least 10 tanks
Switch jobs at least 10 times among all members
Make the battle power of one tank at least 5,000
Survive for 50 days