Here is the full list of all 14 Virtuous Western (EU) trophies - there are 2 silver, 11 gold and 1 platinum.
Get all other trophies
Complete all stages
Defeat the boss
Collect 3 bullets in the same stage
Shoot down the shotgun enemy
Blow up more than one enemy with just one dynamite
Blow up several barrels of TNT in a row
Make an enemy shoot a barrel of TNT
Blow up an enemy
Smash an enemy with a box
Make two enemies shoot each other
Shoot an enemy while he is reloading
Shoot your first enemy
Enter the first level of the game