Here is the full list of all 51 3D Dot Game Heroes (EU) trophies - there are 42 bronze, 5 silver, 3 gold and 1 platinum.
Congratulations! Thank you for playing this far!
Acquired all the swords.
Acquired a sword from King Block.
Maxed out the LIFE bar.
Maxed out the Giga Sword.
Cleared the game in FROM mode.
Cleared the game with the princess restored.
Visited all maps.
Maxed out the MAGIC bar.
Cleared the Spelunker event.
Spent the night in Raejack with the princess.
The princess was restored to her true form.
You found Ai.
You found Sue.
Booked all monsters in the Bestiary.
Cleared Spelunker mode.
Defeated Onyx without taking damage.
Defeated Fuelle without taking damage.
Survived Spelunker mode for 10 hours.
Defeated Dark Knight without taking damage.
Defeated Dragon without taking damage.
Defeated Kraken without taking damage.
Defeated Giga Golem without taking damage.
Defeated Queen Bee without taking damage.
Defeated Eelagon without taking damage.
Booked Dark Knight in the Bestiary.
Booked Queen Bee in the Bestiary.
Booked Onyx in the Bestiary.
Booked Giga Golem in the Bestiary.
Booked Fuelle in the Bestiary.
Cleared the game without dying.
Cleared the game without restoring the princess.
Acquired the Hero Shield.
Acquired the Hero Sword.
Booked Eelagon in the Bestiary.
Booked Dragon in the Bestiary.
Played the game for five hours.
Booked Kraken in the Bestiary.
Made your sword stronger at the blacksmith.
Acquired the Holy Sword.
Booked a monster in the Bestiary.
Defeated a foe with a bomb.
Collected 777G.
Defeated a foe with a bow.
Used a Shader Magic.
Guarded an attack.
Took a snapshot.
Acquired the Ancient Sword.
Defeated a Guardian.
Defeated a foe with a sword.
Made a character model.