Here is the full list of all 50 LOST SPHEAR trophies - there are 39 bronze, 8 silver, 2 gold and 1 platinum.
All trophies earned.
Ate 100 different foods.
Ate Fruit Jelly.
Went fishing 30 times.
Ate Moon Tripe.
Ate Clam Soup.
Used all paradigm drives.
Used Last Elixir.
Defeated Dark Ruin.
Defeated Eclipse.
Money acquired reached 1,000,000G.
Money spent reached 500,000G.
Obtained Moon's Soul.
Obtained Rainbow Spritnite.
Obtained Isolation Spritnite.
Defeated 300 monsters with Scan.
Obtained Chrono Spritnite.
Obtained War Maiden Spritnite.
Obtained Raggys' Spritnite.
Obtained Tyranny Spritnite.
Obtained Sunlight Spritnite.
Landed on the moon.
Total shop sales reached 100,000G.
Returned from the Fade Realm.
Turned into rooster.
Created spritnite 50 times.
Defeated Krom.
Winger acquired.
Royal Capital Marche restored.
Unlocked all spritnite columns.
Made 30 consecutive hits.
Caused 1,000 or more damage with 1 attack.
Sublimated spritnite to max level.
Caused 10 sublimations.
Sea restored.
Made 100 critical hits.
Caused 500 or more damage with 1 attack.
Made 10 Machine Kills.
Night and day restored.
Created 10 artifacts.
Vulcosuit acquired.
In-battle move distance reached 1000D.
Ship acquired.
Collected from Glow Spots 100 times.
Made 10 Momentum Kills.
Made 10 evasions.
Activated Momentum Mode 4 times in 1 battle.
Made 15 weak-spot attacks.
Activated Momentum Mode 10 times.
Damaged 3 or more monsters with 1 attack.