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