The Legend of Heroes: Trails of Cold Steel

Missable

To unlock this trophy, you need to analyze every enemy and boss in the game by using the Battle Scope item (can be purchased at shop in any town) or Elliot and Emma's Detector craft. Note: Dragon Vision can be used since it automatically analyzes defeated enemies, however, it's not recommended because the character who equips this quartz must deal the finishing blow; therefore, you may miss the optional or main bosses since they are only available once.

If you defeat the same species a few times by using various attacks, then you will receive its data, instead of scanning them but it will take a while to fill the enemy info. You should try to analyze and defeat all possible monsters/enemies (including mini-bosses from the subquests) in the current area before moving on to next areas. If done correctly however, you will unlock this trophy when you fight against the final boss.

Note: You should pay attention to Panda, Raccoon, and Tomato-like enemies since they are not available on the map, however, they usually come with other monsters. If you see "No appearance" next to the monster name, then you should try to defeat these monsters before leaving.

There are 197 species of monsters in the game, the details and locations of which can be found here:

Thors Academy - (most of them are Story-related opponents)

1. Combat Shell α
2. Combat Shell β
3. Instructor Sara
4. Patrick
5. Noble Student
6. Noble Student
7. Noble Student
8. Laura
9. Fie
10. Combat Shell γ (Childhood Friend's Intentions quest)
11. Elliot
12. Machias
13. Jusis
14. Gaius
15. Alisa
16. Laura
17. Emma
18. Fie
19. Instructor Sara
20. Angelica (Personal Request quest)

Schoolhouse - 1F

1. Flying Feline
2. Grass Drome
3. Coin Beetle
4. Dastardly Amalgam
5. Pom
6. Dissolution Slug
7. Iglute Garmr (Story-related, 1st phase)
8. Iglute Garmr (Story-related, 2nd phase)
9. Minos Demon (Story-related)

Schoolhouse - 2F

1. Lantern Spider
2. Stone Stalker
3. Claydoll
4. Cherubic Gate (Story-related)

Schoolhouse - 3F

1. Hell Rabbit
2. Orderbelisk
3. Time Snail
4. Pit Demon (Story-related)

Schoolhouse - 4F

1. Hinomikoto
2. Mad Weed
3. Pit Cerberus
4. Seraphic Gate (Story-related)
5. Ol-Gadia (Story-related)

Schoolhouse - 5F

1. Polyjelly
2. Glaceron
3. Frost Biter
4. Unsurtr (Story-related)

Schoolhouse - 6F

1. Purple Ooze
2. Ghost Soul
3. Star Lambda
4. Elvavria (Story-related)

Schoolhouse - 7F

1. Lunar Bee
2. Minos Demon
3. Surtr
4. Obsidian Garmr
5. Ramon
6. Rup Kamuy
7. Thunder Hydra
8. Steel Golem
9. Og-Jior
10. Judge Pillar
11. Durgnessa
12. Ashen Fragment
13. Loa Erebonius (Story-related)

Celdic Highway

1. Crop Muncher
2. Deathcargot
3. Evil Crow
4. King Dragonfly
5. Fanged Wolf
6. Ripper Squirrel
7. Acerbic Tomartian (No appearance)
8. Scary Dinosaur (East Celdic Highway Monster quest)
9. Zwordar

Lunaria Park

1. Jelly Shroom
2. Blade Horn
3. Blade Pincer
4. Sasa Panda (No appearance)
5. Gordi Chief (Story-related)
6. Fake Park Ranger (Story-related)
7. Grunoja (Story-related)

North Kreuzen Highway

1. Mantrap
2. Egg Snake
3. Venus Mantrap (North Kreuzen Highway Monster quest)

Aurochs Canyon

1. Stealth Turtle
2. Hornteater
3. Anteater
4. War Mantis
5. Zwordar
6. Attack Dog
7. Green Raccoon (No appearance)
8. Fate Spinner (Aurochs Canyon Monster quest)

Bareahard Waterway

1. White Feline
2. Ice Drome
3. Jewel Rat
4. Platinum Bug
5. P. Army Soldier (Story-related)
6. Kazakh Doven B (Story-related)
7. Kazakh Doven R (Story-related)

Highlands - South

1. Winged Smake
2. Grass Hopper
3. Ostrich
4. Brutal Buffa
5. Brutal Infant
6. Rhinocider
7. Thunder Loach (also available in Return to Zender quest)
8. Thunder Quaker (Return to Zender quest)
9. Millium (Story-related)

Highlands - North

1. Stony Croaker
2. Infant Drango
3. White Fang
4. Zaurtoise
5. Creepy Sheep (also available in Wandering Sheep quest)
6. Hippogriff
7. Stone Golem (Nord Highlands - North Monster quest)

Ancient Quarry

1. Vampiric Thorn
2. Diglem (also available as Story-related monster)
3. Jaeger Dropout (Story-related)
4. G (Gideon) (Story-related)
5. Zesvia (also available as Story-related monster)
6. Ginosha-Zanak (Story-related)

Heimdallr Passage

1. Dirty Rat
2. Black Drome
3. Ball Rat
4. Ghoul Frog
5. Giant Drome (Underground Passage Monster quest)

Mater Park (Story-related)

1. Rean
2. Machias

Heimdallr Waterway

1. Sharkodile
2. Scavenger Crow
3. Flash Drome
4. Fate Spinner
5. Great Sharkodile (Heimdallr Port Monster quest, also available as Story-related monster)

Waterway - Depths

1. Diving Ananta
2. Cursed Sculpture (Story-related)
3. Zoro-Agruga (Story-related)
4. C (Story-related)

Ebel Highway

1. Rose Shroom
2. Grass Pom
3. Gordi Schnarr
4. Greedy Reaper
5. Goldcider
6. Coco Panda (No appearance)
7. Crocodark (Ebel Highway Monster quest)
8. Phalanx J9 (Ebel Highway Monster 2 quest)

Legram

1. Butler Klaus (Arseid School Training Bout quest)
2. Viscount Arseid (Story-related)

Lohengrin Castle

1. Shadow Spirit (also available as Story-related monster)
2. Wandering Armor
3. Wandering Sword
4. Dark Canine
5. Death Slugger
6. Nosferatu (Story-related)

Garrelia Fortress

1. Tri-Attacker R2 (also available as Story-related enemy)
2. Tri-Attacker HG (also available as Story-related enemy)
3. Phalanx J9
4. Zephyranthes (Story-related)
5. Terrorist - Sword (Story-related)
6. Terrorist - Gun (Story-related)
7. R-Zephyranthes (Story-related)
8. S (Scarlet) (Story-related)

Spina Byroad

1. Great Grouse
2. Steel Ladybug
3. Greedy Wolf
4. Mad Penguin
5. Hellish Tomartian (No appearance)
6. Rocky Croaker (Spina Byroad Monster quest)

Nortia Highway

1. Crimson Dragonfly
2. Rock Serpent
3. Blue Horn
4. Hydra (Nortia Highway Monster quest)

Sachsen Mountain Path

1. Dancing Owl (also available in Shots Fired quest)
2. Bomb Spider
3. Cryon Bit
4. Death Sickle
5. Roc

Sachsen Iron Mine

1. Turtle Bug (Available only on September 25)
2. Metal Bat (Available only on September 25)
3. Gold Fungus (Mining a Minor Metal quest)
4. Magma Drome
5. Attack Dog G
6. Phalanx J9
7. Tri-Attacker R2
8. Tri-Attacker HG
9. Kazakh Doven G
10. B-Zephyranthes (Story-related)
11. Terrorist - Sword (Story-related)
12. Terrorist - Gun (Story-related)
13. V (Vulcan) (Story-related)
14. NT-? (wait for C to throw them out)
15. G-Zephyranthes (Story-related)
16. C (Story-related)

Military Factory (Story-related)

1. Gespard G

Roer Passage

1. Metal Beetle
2. Moon Mole

Trista Outskirts (Story-related)

1. Drakkhen
2. Spiegel (1st phase)
3. Spiegel (2nd phase)
4. Azure Knight