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 the Prime Evil.
Reclaim your high score.
Gather at least 20 recruits for your ship.
A party member betrays you.
Defeat a special bounty.
Defeat a cosmic entity.
Defeat a true hero.
Win a VR Battle.
Gain Chahn's ultimate ability.
Find the ultimate ingredient.
Gain your final party member.
Prove your innocence.
Defeat the Crystal Wraith.
Defeat the ultimate zombie.
Deal over 9999 damage in a single hit.
Defeat the Nightmare.
Escape confinement.
Use Clarke's Self-Destruct ability.
Use a Heroine program.
Chat with your party members.
Commandeer your own spaceship.
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.
Complete the SkyBreaker Tower scenario.
Win the first battle in the game on the hardest difficulty level.