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.
Everyone reached level 99.
Defeated the secret boss, Delphinus.
View a certain CG Image.
Met with Caelus.
Finished the Conquest ending route.
Obtained the cursed sword of legend.
Fought 500 battles.
Saw the Lowee ending.
Saw the Lastation ending.
Saw the Leanbox ending.
Saw the Planeptune ending.
Vert joined the party.
Blanc joined the party.
Noire joined the party.
Saw the human ending.
Saw the normal ending.
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.
Neptune joined the party.
Defeated CFW Judge.
Dealt over 100,000 damage.
Nepgear's abilities enhanced.
Achieved an 80-hit original combo.
5pb. joined the party.
Gust joined the party.
Fought 100 battles.
Met Rom and Ram.
Nisa joined the party.
Met Uni.
Developed an item.
Performed battle for the first time in years.
Created your own combo.
Started up a new game in Gamindustri.