Here is the full list of all 31 X-Morph: Defense trophies - there are 17 bronze, 7 silver, 6 gold and 1 platinum.
Earn all other trophies.
Finish the co-op campaign.
Finish all missions with a gold trophy.
Destroy 10000 enemy air units in the single player campaign.
Finish the single player campaign.
Finish all missions with at least a silver trophy.
Destroy the boss in the Japan mission.
Destroy 12000 enemy air units in the co-op campaign.
Destroy 6000 destructibles in the co-op campaign.
Destroy 20000 enemy ground units in the co-op campaign.
Destroy 2500 destructibles in the co-op campaign.
Destroy 17500 enemy ground units in the single player campaign.
Finish all optional missions.
Start a mission with your ship fully upgraded.
Destroy the airbase headquarters during the Hawaii mission before the reinforcements are called in.
Build all types of towers in one mission.
Destroy the convoy with military resources during the mission in the USA.
Destroy 2500 enemy air units in the single player campaign.
Destroy 5000 destructibles in the single player campaign.
Destroy 5000 enemy ground units in the single player campaign.
Destroy the boss in the Russia mission.
Destroy 2000 destructibles in the single player campaign.
Create a 1200 meters long path for enemies during the Canada mission.
Destroy the boss in the Germany mission.
Destroy 3000 enemy air units in the co-op campaign.
Finish one optional mission.
Finish a mission with less than 10% core integrity.
Destroy 6000 enemy ground units in the co-op campaign.
Finish a mission without dying even once.
Finish a mission with 100% core integrity.
Destroy the boss in the South Africa mission.