Full list of all 55 Enter the Gungeon trophies - 40 bronze, 12 silver, 2 gold and 1 platinum.
The base game contains 49 trophies, and there are 2 DLC packs containing 6 trophies.
Acquire All Other Trophies
Accessed the Hidden Market
Steal 10 things
Complete the game with the Sorceress's Enchanted Gun
Die in the Past
Complete Frifle's Challenges
Clear the Fourth Chamber 20 Times
Clear the Fifth Chamber 10 Times
Complete the game with Beast Mode on
Clear the Sixth Chamber
Unlock the Robot
Unlock the Bullet
Kill 100 enemies while riding in a mine cart
You've met with a terrible fate, haven't you
Kill a Jammed Boss
Complete all 4 main character Pasts
Kill the Pilot's Past
Collect five Master Rounds in one run
Win a wager against the Gunsling King 5 times
Kill the Convict's Past
Clear the Third Chamber 30 Times
Map the first Five Chambers for the lost adventurer
Populate the Breach
Kill the Hunter's Past
Always be flipping. Guns are for flippers
Kill the Marine's Past
Kill 100 enemies by dropping chandeliers
Ace Winchester's game 3 times
Fall at the last second
Deliver the Golem's replacement arm
Clear the Second Chamber 40 Times
Open the shortcut to the Fifth Chamber
Construct the Bullet that can kill the Past
Carry a large amount of money at once
Clear the First Chamber 50 Times
Open the shortcut to the Fourth Chamber
Kill 100 enemies by knocking them into pits
Spend big at the Acquisitions Department
Defeat the Boss of the Fifth Chamber
Kill a boss after covering it with glitter
Get the jump on a Mimic
Open the shortcut to the Third Chamber
Access the Temple
Avenge Manuel
Access the Oubliette
Open the shortcut to the Second Chamber
Kill a frozen enemy by rolling into it
Why
Complete the Tutorial
Complete Daisuke's trial
Kill the Robot's Past
Kill the Bullet's Past
Defeat an Advanced Boss
Take Revenge
Complete Tonic's Challenge