Here is the full list of all 41 Hyperdimension Neptunia Re;Birth2: Sisters Generation achievements.
You played so much, everyone now agrees that Nepgear is a good main character, too!
Watched the Holy Sword Ending.
Cleared all Stella's ☆ Dungeon levels.
All characters have attained Level 99.
Obtained a total of 100 million Credits.
Watched the Conquest Ending.
Defeated the hidden boss, Delphinus.
Discovered 200 Plans.
Watched the Lastation Ending.
Watched the True Ending.
Cleared Chapter 7.
Watched the Human Ending.
Watched the Leanbox Ending.
Watched the Lowee Ending.
Kei Jinguji joined the party.
Cleared Chapter 6.
Created your first Game Disc.
Mina Nishizawa joined the party.
Chika Hakozaki joined the party.
Watched the Planeptune Ending.
Histoire joined the party.
Watched the Normal Ending.
Cleared Chapter 5.
Rom's and Ram's HDD versions have been powered up!
Uni's HDD version has been powered up!
Cleared Chapter 4.
Nepgear's HDD version has been powered up!
Fought 500 battles.
Inflicted over 100,000 points of damage.
Cleared Chapter 3.
Cleared Chapter 2.
Performed an 80-hit combo.
You have met Rom and Ram.
Fought 100 battles.
You have met Uni.
Cleared Chapter 1.
Made use of Stella's ☆ Dungeon for the first time.
Used the Remake System for the first time.
Created your own original combo setup.
Engaged in your first random encounter.
You began your adventure.