Here is the full list of all 35 Megadimension Neptunia VII achievements.
Achieved Ascension Ending in [Heart Dimension Neptunia H: Into Legend].
Changed into Next Form for the first time.
Earned a total of one million credits.
Invested in either Commerce, Industry, or Public Relations to max level.
Acquired 50 items from dungeon objects.
Maxed a Lily Rank.
Achieved 100 Hits.
Fought in 1000 battles.
Cleared [Hyper Dimension Neptunia G: The Golden Leaders, Reconstructors of Gamindustri].
Connected two cities and traded between them.
Caused a Parts Break 100 times.
Fought in 300 battles.
Used a two person Formation Skill for the first time.
Invested for the first time.
Cleared [Zero Dimension Neptunia Z: Twilight of the Desperate CPU].
Used Route Building for the first time.
Acquired a super rare item for the first time.
Acquired a rare item for the first time.
Used a three or four person Formation Skill for the first time.
Started a New Game.
Completed Neptunia VII!
Achieved Revival Ending in [Heart Dimension Neptunia H: Into Legend].
Invested in Commerce, Industry, and Public Relations to max level for all cities.
Maxed all Lily Ranks for a single person.
Produced 10 "Godly Games" within Disc Dev.
Produced 10 "Sucky Games" within Disc Dev.
Collected all figurines from Chocolate Eggs.
Collected all cards from CPU Chips.
Found all of the hidden Treasure Boxes.
Acquired 100 items from dungeon objects.
Developed 100 different item types.
Achieved maximum damage of 100,000.
Used Formation Skills 100 times.
Got one person to Level 99.
Answered all "Quiz! Millionep" questions correctly.