Here is the full list of all 14 Luckslinger trophies - there are 2 silver, 11 gold and 1 platinum.
Get all the trophies
Win music duel
Bring a boss to jail
Collect gold bar
Bury a boss
Beat a boss
Die 10 times
Die 3 times
Defeat 22 enemies
Shoot 11 golden bullets
Defeat 7 enemies
Collect a vinyl
Shoot a gold bullet
Defeat 3 enemies