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!
All characters have attained Level 99.
Obtained a total of 100 million Credits.
Chika Hakozaki joined the party.
Cleared all Stella's ☆ Dungeon levels.
Watched the Leanbox Ending.
Watched the Lastation Ending.
Watched the Planeptune Ending.
Watched the Lowee Ending.
Mina Nishizawa joined the party.
Watched the Human Ending.
Watched the Normal Ending.
Kei Jinguji joined the party.
Watched the Holy Sword Ending.
Watched the Conquest Ending.
Defeated the hidden boss, Delphinus.
Discovered 200 Plans.
Watched the True Ending.
Cleared Chapter 7.
Cleared Chapter 6.
Histoire joined the party.
Performed an 80-hit combo.
Fought 500 battles.
Cleared Chapter 5.
Rom's and Ram's HDD versions have been powered up!
Uni's HDD version has been powered up!
Inflicted over 100,000 points of damage.
Cleared Chapter 4.
Nepgear's HDD version has been powered up!
Cleared Chapter 3.
Cleared Chapter 2.
You have met Rom and Ram.
Fought 100 battles.
Created your first Game Disc.
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.
Engaged in your first random encounter.
Created your own original combo setup.
You began your adventure.