Here is the full list of all 46 Omega Labyrinth Life achievements.
Gone on more than 100 adventures.
Cleared a Sage's Trial.
Accumulated more than 200,000 μ of Nectar.
Had all characters attain Z Bust Mode.
Achieved a score of 200,000 or higher.
Cleared Yurika's trial.
Cleared Juri's trial.
Cleared Nanami's trial.
Viewed all main characters' spa events.
Cleared Mio's trial.
Collected seeds 200 times while in dungeons.
Cleared Mei's trial.
Cleared Berune's trial.
Cleared Hinata's trial.
Assimilated for the first time.
Reached Hyper L mode.
Befriend all main characters.
Defeated more than 1,000 monsters.
Gathered more than 100,000 ωP.
Changed leaders a total of 10 times.
Pai has appeared.
Spoke to both Greedrat and Petal Gob at least once.
Upgraded Luster Value for the first time.
Restored 3 areas of the garden.
Restored 1 area of the garden.
You've obtained all achievements.
Acquired all Gallery Keys.
Acquired all expansions.
Fully restored the garden.
Viewed all stories.
Emerged victorious in the final battle.
Cleared Rinka's Test Site.
Cleared the Secrets of the Clock Tower.
Cleared A Distant Garden
Successfully stole from the shop.
Upgraded Luster Value more than 100 times.
Defeated the Reaper.
Reached a Luster Value of +99 on a piece of equipment.
Harvested flowers 200 times.
Maxed out all skills for all characters.
Used a mic with all playable characters.
Completed the Item Codex.
Completed the Monster Codex.
Completed the Synthesis Codex.
Completed the Flower Codex.
Completed the Object Codex.