Here is the full list of all 34 Cosmic Star Heroine trophies - there are 19 bronze, 9 silver, 5 gold and 1 platinum.
Achieve all possible trophies.
Complete the game.
Defeat a cosmic entity.
Defeat the Prime Evil.
Reclaim your high score.
A party member betrays you.
Gather at least 20 recruits for your ship.
Defeat a true hero.
Defeat a special bounty.
Gain Chahn's ultimate ability.
Find the ultimate ingredient.
Gain your final party member.
Prove your innocence.
Defeat the Crystal Wraith.
Defeat the Nightmare.
Deal over 9999 damage in a single hit.
Use Clarke's Self-Destruct ability.
Defeat the ultimate zombie.
Escape confinement.
Chat with your party members.
Commandeer your own spaceship.
Use a Heroine program.
Defeat the Blobmith.
Win every round of Rock Paper Scissors.
Reach Lauren's apartment.
Charm an enemy.
Scare rats away in Gehenna.
Defeat the Spectral Dragon.
Defeat the lab guardian.
Reach 300 style.
Share a soda.
Win the first battle in the game on the hardest difficulty level.
Complete the SkyBreaker Tower scenario.
Win a VR Battle.