Here is the full list of all 45 Nuclear Throne trophies - there are 31 bronze, 10 silver, 3 gold and 1 platinum.
Defeat Hyper Crystal as Horror.
Defeat the Technomancer as Steroids
Defeat Mom as Rebel.
Unlock a Golden Weapon for every character.
Reach 2-1 on Hard Mode as Chicken.
Unlock Hard Mode.
Loop as every character.
Sit on the Nuclear Throne as headless Chicken.
Defeat the Technomancer.
Defeat Captain.
Reach 2-? as Eyes.
Reach 4-? as Crystal.
Eat a Hyper Weapon as Robot.
Defeat Horror.
Reach 5-?
Unlock a Golden Weapon as any character.
Reach 3-?.
Defeat Hyper Crystal.
Reach the Nuclear Throne with Melting without choosing Rhino Skin or Strong Spirit.
Reach the Nuclear Throne in under 10 minutes as Plant.
We hereby sincerely apologize.
Defeat Mom.
Unlock a Crown as any character.
Reach the Nuclear Throne.
Reach Level Ultra as any character.
Loop past the Nuclear Throne.
Defeat Throne II.
Reach 7-3 on a Daily
Loop the game.
Defeat the Nuclear Throne.
Reach 6-1.
Defeat Lil Hunter.
Reach 5-1.
Defeat Big Dog.
Die.
Reach 3-1.
Reach 2-1.
Defeat Big Bandit.
Completed Every Challenge We Could Think Of In Nuclear Throne.
Defeat Captain as Rogue.
Unlock a Golden Disc Gun or Golden Nuke Launcher.
Reach Level Ultra as Skeleton
Play as Frog.
Unlock all Crowns as one character.
Get 100% of the unlocks.