Here is the full list of all 47 Hyperdimension Neptunia mk2 trophies - there are 36 bronze, 7 silver, 3 gold and 1 platinum.
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Viewed the True ending.
View a certain CG Image.
Met with Caelus.
Saw the Leanbox ending.
Saw the Lowee ending.
Saw the Lastation ending.
Saw the Planeptune ending.
Everyone reached level 99.
Defeated the secret boss, Delphinus.
Saw the human ending.
Saw the normal ending.
Fought 500 battles.
Finished the Conquest ending route.
Achieved an 80-hit original combo.
Obtained the cursed sword of legend.
Regained Planeptune after its capture.
Defeated CFW Magic.
Defeated CFW Trick.
Rom's and Ram's abilities enhanced.
Defeated CFW Brave.
Uni's abilities enhanced.
Vert joined the party.
Blanc joined the party.
Noire joined the party.
Neptune joined the party.
Defeated CFW Judge.
Dealt over 100,000 damage.
Nepgear's abilities enhanced.
5pb. joined the party.
Gust joined the party.
Fought 100 battles.
Met Rom and Ram.
Created your own combo.
Nisa joined the party.
Met Uni.
Developed an item.
Performed battle for the first time in years.
Started up a new game in Gamindustri.