Here is the full list of all 36 Super Neptunia RPG achievements.
You cleared 15 different Hunt Quests.
You acquired 500,000 total Credits.
You went to the hot springs with everyone.
You decided to do your best as a Goddess once more.
You defeated the Ultimate Dragon, and protected the future of Gamindustri.
You yelled "hehe Chromey-kins xoxo.".
You enjoyed the Octopus Party.
You acquired 250,000 total Credits.
You tore Histoire, and turned back time.
You cleared many quests.
You were able to witness the form of the First-Gen Goddess, "Chrome Heart."
You were able to chain a large combo.
You learned 50 different Skills.
Your power as a Goddess has returned.
You collected all 7 Tomes.
You defeated 300 enemies.
Vert officially became a party member.
You had a mental discussion.
You saved Noire.
You defeated the Metal Dogoo.
You've played as Neptune over 100 times.
You opened many treasure chests.
You are now able to summon Puddingo.
You got a Game Over.
Noire and Blanc became party members.
You obtained Histoire.
You saw your first Break Attack.
You defeated your first monster.
You opened your first treasure chest.
This is proof you've played Super Neptunia RPG thoroughly. You're a true hero!
You ate an eggplant.
Neptune reached Level 100.
Noire began singing in her sleep.
You enjoyed a game for 3 nights.
You acquired 50 different weapons.
You acquired a total of 100 different accessories.