Here is the full list of all 39 Hyperdimension Neptunia: Producing Perfection trophies - there are 22 bronze, 12 silver, 4 gold and 1 platinum.
You got all the trophies. Nice.
Obtained all costumes and accessories.
You've seen Neptune's GOOD ending. "GOOD job, buddy! Now keep playing!"
You've mastered Neptune's route. "So you think you've seen all the events, huh? But!!! A second and third hidden event...don't actually exist. You're done. Good job. Seriously, thank you!"
All the characters made an appearance.
You've seen Neptune's TRUE ending. "How was breakfast, buddy?"
You've seen Neptune's BAD ending. "Well, it is what it is. Sorry."
Neptune's affection has maxed out. "Oh man, my heart is doing backflips or something!"
You've mastered Vert's route. "You played this game so seriously that it has moved me. It was a long road for you, but are you satisfied? I look forward to seeing you again."
You've seen Vert's GOOD ending. "Well done, but keep trying!"
You've seen Vert's TRUE ending. "What instance shall we challenge today?"
You've seen Vert's BAD ending. "Your directions were rather uninspired."
Vert's affection has maxed out. "To think I would love something more than games...!"
You've mastered Noire's route. "H-Hmph. You worked hard, so I don't mind recognizing you a little bit. But only a little bit! Don't take it the wrong way."
You've seen Noire's TRUE ending. "Y-You have lipstick on your face!"
Put on 50 concerts.
You've seen Noire's GOOD ending. "There are other endings to get. Just look at this list."
You've seen Noire's BAD ending. "This happened because you didn't listen to me!"
Noire's affection has maxed out. "Wh-What is this foreign feeling...?"
You've mastered Blanc's route. "Thanks to you, my route has been completed. I didn't think you could pull it off. I'll consider you the second Oracle of Lowee."
You've seen Blanc's TRUE ending. "I'll be waiting for your response."
Mastered all the songs.
You've seen Blanc's GOOD ending. "This is no more than a passing mark. Keep trying."
You've taken a majority of the shares.
Formed your first trio.
Blanc's affection has maxed out. "My face is red. Maybe I'm cold, or maybe I have a fever."
Your song was ranked number one.
You went out to play.
Formed your first duo.
You overcame a difficult situation...
You got pummeled by the little sister crew.
You've seen Blanc's BAD ending. "Enough. Leave me alone."
Obtained the highest ranking at a concert.
You went on your first job.
You traveled to another nation.
You put on your debut concert.
You attended your first lesson.
You started the game! Way to go!
Got up-close and personal with a character.