Here is the full list of all 50 LOST SPHEAR achievements.
Landed on the moon.
Made 30 consecutive hits.
Money acquired reached 1,000,000G.
Returned from the Fade Realm.
Defeated Krom.
Ate Clam Soup.
Winger acquired.
Caused 10 sublimations.
Money spent reached 500,000G.
Total shop sales reached 100,000G.
Royal Capital Marche restored.
Unlocked all spritnite columns.
Turned into rooster.
Made 100 critical hits.
Caused 1,000 or more damage with 1 attack.
Created spritnite 50 times.
Caused 500 or more damage with 1 attack.
Sea restored.
Night and day restored.
Created 10 artifacts.
Vulcosuit acquired.
Made 10 Machine Kills.
Made 10 evasions.
In-battle move distance reached 1000D.
Made 10 Momentum Kills.
Ship acquired.
Collected from Glow Spots 100 times.
Made 15 weak-spot attacks.
Went fishing 30 times.
Activated Momentum Mode 10 times.
Activated Momentum Mode 4 times in 1 battle.
Damaged 3 or more monsters with 1 attack.
All achievements earned.
Defeated Eclipse.
Defeated Dark Ruin.
Obtained Moon's Soul.
Obtained Rainbow Spritnite.
Obtained Sunlight Spritnite.
Obtained Chrono Spritnite.
Obtained War Maiden Spritnite.
Obtained Tyranny Spritnite.
Obtained Raggys' Spritnite.
Obtained Isolation Spritnite.
Ate Moon Tripe.
Ate Fruit Jelly.
Used Last Elixir.
Sublimated spritnite to max level.
Used all paradigm drives.
Defeated 300 monsters with Scan.
Ate 100 different foods.