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