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