FOE

FOE is an acronym for Formido Oppugnatura Exsequens in English, or Field On Enemy in Japan. FOEs are like minibosses, and should not be fought the first time you enter a floor or stratum, because you would run a risk of being killed by one. FOEs tend to be much stronger statistically than all other enemies in a given strata or dungeon and should be tested or observed before risking death to kill one. A capable - or fortunate - party can defeat an FOE to enjoy its unique drops and large amounts of EXP, but all FOEs in Etrian Odyssey II do not give any EXP to enforce the fact that they are obstacles to be maneuvered around rather than fought through.

Skills like analyze or items like analysis lenses, are especially useful for understanding the capabilities of new FOEs. Another general rule is that most FOEs are resistant to status ailments and it may take many tries to land one. That aside, FOEs serve as the main obstacle to exploration, and many floor puzzles involve navigating around FOEs without trying to engage any in battle, while several stratum bosses often utilize FOEs to complicate the fight.

Passive FOEs appear as purple dots on the map, and are either committed to their movement pattern or normally stationary over anything else. Should, if possible, they spot the player (usually by the player getting too close and in their line of sight), they turn red and commence pursuit, chasing down the player until they either vacate the room or either party is dead. FOEs turning aggressive (or at least noticing the player) are accompanied by a signature ding. Should a player engage an FOE from behind, they get a pre-emptive round, while the FOE doing the same to the party will give it an ambush round. Note that certain FOEs are also invisible, either on the overworld or undetectable on the map, but they tend to be mercifully immobile unless they turn aggressive or are engaging the player. FOEs that have been stunned by an item, skill, or map event, are instead coloured grey.

FOEs can still move about the map in the middle of combat. Every turn commenced after the first will move all mobile FOEs as if the player had taken a single step in the map. FOEs can turn aggressive should they get close enough to the party while they are still in combat, and any FOE that moves onto the party's square mid-combat will have them join the battle. When running from an FOE battle, in Etrian Odyssey I-III, the party needs a vacant square behind them to retreat to - otherwise escape will be impossible. Should the party engage an FOE while not looking towards them, they will automatically turn to face the FOE before the battle begins, which can have disastrous results if this rotation puts their back to a wall. EOIV and all subsequent games abolish this requirement.

Starting with Etrian Odyssey IV, FOEs each have their own overworld model instead of being represented by a moving orb in the labyrinth. Their map symbols also gain a ring around them that shows their general difficulty compared to the party's highest level character - red rings signify the party is likely to die in a few hits to the FOE; yellow means the party has a better chance to survive; blue means the FOE can theoretically be defeated by the party, though the player should still take caution. These rings are based on the highest-leveled member of the party. All bosses have purple rings instead.

List of FOEsEdit

Battle ThemeEdit

The FOE battle theme of Etrian Odyssey is called A Sudden Gust of Wind Before Your Eyes.

First Stratum-Emerald GroveEdit

Name	Floor Found On	Skills	Description
Ragelope	B2-3	Scream	An extremely aggressive horned monster whose uncontrollable fury gives it lethal strength.
Kuyutha	B2-3	Rampage	A large bull that will charge at the slightest provocation. Approach it with great caution.
Wolf	B4-5	Fang, Evil Cry	White-furred wolves who wander the upper floors of the grove. Dangerous when fought in packs.
Stalker	B3	Scythe	An overgrown man-eating mantis. Defeating one is a rite of passage for novice adventurers.

Second Stratum-Primitive JungleEdit

Name	Floor Found On	Skills	Description
Moa	B6, B9-10	Rush	This large, plump, flightless bird compensates with its quick foot speed.
Cutter	B6-10	Shredder, Roar	Bears with thick muscles and long claws. Novice adventurers should avoid them at all costs.
Assassin	B6, B9	Needle, Venom	A type of scorpion that carries one of the deadliest poisons known to mankind.
Armoth	B8, B10	Bullrush, Charge	An elephant whose tusks are so strong that a single strike is enough to fell most warriors.
Sprout	B10	None	One of Yggdrasil's buds. Its size prevents it from posing a real threat to explorers.

Third Stratum-Azure RainforestEdit

Name	Floor Found On	Skills	Description
Bloodant	B11-12	Acid	The evolved Deathant. It has similar abilities, but its strength is vastly enhanced.
Servant	B12	Crusher	The evolved Guardant. If not defeated quickly, it will continue to call its brethren.
Killclaw	B13-14, only appears after a battle is fought near it.	Ripper	This ruthless crab shreds adventurers to ribbons almost as if for sport.
Shelltor	B11	Blizzard	A gigantic hard-shelled turtle that preys on unwary adventurers in the Labyrinth.
Muckdile	B13-14	Bite	This creature, which evolved in the forest, can swallow human-sized creatures in one gulp.

Fourth Stratum-Sandy BarrensEdit

Name	Floor Found On	Skills	Description
Sickwood	B16-17, 19	Venom, Branch	These trees are capable of independent motion, and their branches are tipped with poison.
Cruella	B18-20	Siren	A tree spirit in human form. Many adventurers are lured by its beauty to their deaths.
Diabolix	B18-20	Curse	Among the oldest of the Labyrinth's tree spirits, its alluring appearance belies its strength.
Ogre	B20	Evil Cry, Silencer	The forest folk's deadliest warriors. Their thick arms crush even veteran explorers.
Hunter	B20	Blazer, Glare	Evolving ever more in harmony with nature, these forest folk took on a more demonic look.
Bud	B18	None	The rare evolved form of Yggdrasil's bud that grows deep within the Labyrinth.

Fifth Stratum-Lost ShinjukuEdit

Name	Floor Found On	Skills	Description
Desouler	B22-25	Slash, Charge	A blue-furred ursine which uses its silver claws to drown victims in their own blood.
Kingdile	B21-23, 25	Shred	Called the king of the crocodiles, its natural arsenal makes it an unstoppable juggernaut.
Treetusk	B25	Hell Cry, Rush	An elephant so immense its steps shake the earth. Fleeing it is no shame for novices.
Dinolich	B21-22, 24	Roar, Devour, Charge	One of the Labyrinth's most powerful monsters, its strong jaws could shatter diamonds.

Battle ThemeEdit

The FOE battle theme of Etrian Odyssey II: Heroes of Lagaard is called A Sudden Gust of Wind That Calls Death.

VideosEdit

Etrian Odyssey II - 1st Stratum normal route FOE hunting

1st Stratum normal route FOE hunting

Etrian Odyssey II - 2nd Stratum normal route FOE hunting

2nd Stratum normal route FOE hunting

Etrian Odyssey II - 3rd Stratum normal route FOE hunting

3rd Stratum normal route FOE hunting

Battle ThemeEdit

The FOE battle theme of Etrian Odyssey III: The Drowned City is called Is That Blood Thine or the Enemy's.

VideosEdit

1st Stratum normal route FOEs

1st Stratum normal route FOEs

Etrian Odyssey III - S2 normal route FOE hunting

2nd Stratum normal route FOEs

Etrian Odyssey III - S3 normal route FOE hunting

3rd Stratum normal route FOEs

Etrian Odyssey III - S4 normal route FOE hunting

4th Stratum normal route FOEs

Etrian Odyssey III - Stratum 5 normal route FOE hunting

5th Stratum normal route FOEs

Battle ThemeEdit

The FOE battle theme of Etrian Odyssey IV is called The Fall of the Final Enemy.

All Stratums (Overworld)Edit

Name	Item	Skills	Description	HP
Pooka	Vigor Book	None	A floating organism seen only rarely. Some say that is is a seed from Yggdrasil.	1
Red Pooka	Power Book		A floating organism seen only rarely. It is marked by cross-shaped eyes and a whimsical nature.
Metal Pooka	Speed Book		A floating organism seen only rarely. In contrast to its tough appearance, it is soft to the touch.
Gold Pooka	Luck Book		A floating organism seen only rarely. Encounters with it are said to bring financial fortune.
Rainbow Pooka	Intelligence Book		A floating organism seen only rarely. It is called the King of Pookas due to its vibrant coat.

Windy Plains (First Overworld)Edit

Name	Location	Item	Skills	Description	HP
Bounding Beast	Overworld	Kangaroo Fist	Jet Uppercut, Boomerang Hook	A beast that roams the plains as though it owns them. Its child is still taller than a man.	1289
Supreme Wing		Huge Feather	Stone Eye, Sand Wing, Ripping Claw	A giant raptor that flies the Windy Plains' skies. Novice explorers are no match for its might.	2540
Sky Emperor		Emperor Feather	Gravity Wave, Kiss of Death, Godly Storm	A raptor that has ruled the skies since ancient times. Barring dragons, nothing is stronger.	6441
Cutter	Lush Woodlands B1F, B2F	Bear Claw	Bear Claw	Bears with thick muscles and long claws. Novice adventurers should avoid them at all costs.	883
Bloodbear	Lush Woodlands B2F, B3F; Dense Bushland	Rending Claw	Bear Claw, Ruinous Strike	A vicious bear whose fur is matted with blood. It is vulnerable while readying a deadly strike.	1171
Desouler	Lush Woodlands B3F (secret area)	Desouler Claw	Raging Assault, Charge	A blue-furred bear whose shining silver claws have mauled many explorers to death.	4139
Nomad Baboon	Old Forest Mine	Baboon Skin	Swing	A baboon that roams the Old Forest Mine. Best one in combat is a rite of passage for explorers	742
Furyfawn	Small Orchard	Fawn Hide, Fawn Hoof	Stomp	A fawn with beautiful fur. It seems unthreatening, but witnesses speak of a parent lurking nearby.	248
Furyhorn	Small Orchard, Valley Spring	Fawn Hide	Stomp, Muddle Horn	A vicious deer with immense horns. It strikes fear into explorers with its cry before attacking.	784

Scarlet Pillars (Second Overworld)Edit

Name	Location	Item	Skills	Description	HP
Dream Eater	Overworld	Cursed Wool	Dozing Gaze	A ram beast that wanders the Pillars. Looking into its red, jewel-like eyes induces a deep sleep.	1643
Omnihunter		Soft Sickle	Amputate, Scythe Dance	The king of insects. The sharp sickles on its powerful arms can easily end an explorer's life.	2176
Dinogator		Dinogator Skin	Tear Apart	A carnivorous monster that roams the highlands. It viciously rends its prey before eating it.	2035
Big Moth	Misty Ravine B1F, B2F; Moth's Garden	Violet Wing	Nerve Spores, Devour Ally, Mince	A large moth naturally drawn to battle. The scales it spreads affect one's nervous system.	1518
Giant Moa	Misty Ravine B2F, B3F	Moa Beak	Heavy Stamp	This large, plump, flightless bird compensates with its quick foot speed.	1812
Huge Moa	Misty Ravine B3F (secret area)	Moa Tendon	Crushing Kick, Rush, Charge	Like the Moa, but intelligent enough to use its feet to kick as well as to spring.	4008
Greedy Lizard	Miasma Forest	Lizard Back Fin	Poison Tail	The poison seeping from its tail is so deadly that without an antivenin, the beast is best avoided.	1365
Spotted Frog	Noisy Marsh	Spotted Tongue	Sticky Tongue, High Jump	Larger than a normal Forest Frog, it uses its strong leap to direct powerful kicks at you.	1705

Sacred Mountains (Third Overworld)Edit

Name	Location	Item	Skills	Description	HP
Raging Raptor	Overworld	Raptor Wing, Raptor Claw (Conditional)	Ripping Claw, Raging Winds	A giant raptor making its home in the mountains. It creates gale winds to immobilize its prey.	2540
Tusked Crusher		Crusher's Hide	Binge Eating	A fierce crocodile that awaits its prey with its wide jaws open until it can swallow them whole.	2465
Icy Pincer		Frigid Sickle	Frigid Scythe, Overhand Swing, Scythe Dance	A giant mantis with frozen sickles. It controls the cold, freezing anything in order to slice through it.	3744
Plated Chaser	Golden Lair, Underground Lake	Armor Shard	Grinder, Oil Spin	A giant turtle whose shell is strong as armor. Thoguh it is slow, it can charge surprisingly quick.	2420
Calm King	Golden Lair B3F (secret area)	Thorny Shell	Mow Down, Emperor Guard, Charge	A mutated giant turtle. Its plated shell has sharp spikes; none can withstand its charges.	4028
Patrol Bat	Cramped Nest, Underground Lake	Giant Wing	Claw Dance	An abnormally evolved cave bat. Its patrols take it through paths invisible to the eye.	1984
Poison Lizard	Toxic Cave	Poison Trihorn	Poison Tail	This lizard strews poison around its lair; when its prey is weak, it attacks with its deadly tail	2032

Cloudy Stronghold (Fourth Overworld)Edit

Name	Location	Item	Skills	Description	HP
Ancient Keeper	Overworld	Unusual Metal	Gavel Bang, Purple Mist	A mysterious sculpture with unknown origins. It uses a strange smoke to negate its own weaknesses.	3533
Guardian Judge		Sintered Body	Sleep Stomp, Gravity Wave	A mysterious sculpture with unknown origins. It seals its enemy's movement before passing judgement.	3533
Death Mantis		Death's Scythe, Stone Scythe (Conditional)	Scythe Dance, Finisher Slash	A vicious mantis flying the skies with sharp sickles at the ready.	4104
Sky Emperor		Emperor Feather	Gravity Wave, Kiss of Death, Godly Storm	A raptor that has ruled the skies since ancient times. Barring dragons, nothing is stronger.	6441
Cold Watchman	Echoing Library	Spiked Iron Ball	Target Search, Thorny Ball	A mechanical soldier set to eliminate intruders. On finding one, it walks up silently as death.	3392
Cruel Slayer		Stone Tusk	Frozen Sphere, Wrenching Fang	A superior metal beast programmed to protect important areas. It has no pity or remorse.	3764
Silent Killer	Echoing Library B3F (secret area)	Killer Blade	Target Search, Guillotine Arm, Damage Drain	A humanoid soldier built to annihilate intruders. It bisects its targets in a single swipe.	3768
Scorching Beast		Guardian Shell	Flamethrower, Acid Spray, Wrenching Fang	The final guardian, meant for the highest level of the intruder elimination system.	4144
Stalking Shadow	South Sanctuary	Earthy Skin	Camouflage, Entrapment, Blizzard	A giant chameleon that lurks in places where it cannot be seen in order to ambush its prey.	2953
Golden Deer	Golden Deer Keep	Golden Horn	Rush, Charge	A buck with shining golden fur. Its habitats are rare enough that one does not encounter it often.	3498
Rafflesia	Forgotten Capital	Giant Petal	Poison Dust, Panic Stench, Predatory Ice	A vicious man-eating flower. Once it weakens its prey with toxic gas, it freezes and eats it	4187
Nightmare Ram	Hall of Darkness B1F	Horrific Breath, Toxic Eye (Conditional)	Stone Eye, Rush	A ram mutated by the thick miasma in the labyrinth. It expels the miasma from all parts of its body.	5208
Trigourd	Hall of Darkness B2F	Cursed Femur, Pumpkin Head (Conditional)	Binding, Crazy Noise, Trigourd Tune	A pumpkin ghost with three heads. It is said to be the most combative of the ghastly pumpkins.	2519
Hexgourd		Thorny Bone, Pale Bone (Conditional)	Violent Vines, Tangling Vines, Trigourd Tune	A hellish pumpkin demon. It catches explorers off guard then binds them with its vines.	5038
Flygourd		Cursed Bone, Cursed Vine (Conditional)	Bewildering Eye, Scorching Hell, Trigourd Tune	An eerie vegetable filled with the grudges of the dead. It binds its prey tightly before the kill.	7557
Moth Lord	Hall of Darkness B3F	Crimson Eye, Eerie Scales (Conditional)	Mince, Madness Spores, Devour Ally	The king of all moths. Its vibrant colors mark the deathly poison present in its scales.	6978

Name	Location	Description
Toxipede	Tutelary Forest	A giant caterpillar that guards its territory by poisoning its prey with its toxic mandibles.
Owl Beast		With the body of a bear and the face of an owl, it crushes adventurers with its monstrous arms.
Iron Crustacean		A rock lobster monster. Its claws are prized as proof of an adventurer's strength around Arcania.
Glaring Stinger	Jagged Reach	A huge scorpion roaming the mountains. Its tail crystal gets even harder once it is mineralized.
Bucking Giraffe		This monster runs around at breakneck speed. None can withstand the full swing of a giraffe neck.
Impeding Tengu		This cunning monkey uses monsters as shields and knocks down pillars to hinder human explorers.
Skelesword	Fetid Necropolis	This skeletal swordsman works itself to the bone chasing foes. Beware of its blinding swordplay.
Roaming Wraith		A wandering phantom that hides its form in a huge cloak. Attacks appear to drift right through it.
Headless Hunter		A dullahan that wears a full suit of armor. Its two axes can turn whole guilds into a bloodbath.
Raging Tortoise	Lucent Hollows	A sturdy-shelled turtle. It's sensitive to change and lashes out when it's running low on defenses.
Sonar Worm		A gigantic worm that makes up for its poor vision by tracking prey through echolocation.
Hellhound		This two-headed monster will hunt down explorers anywhere, pin them, then attack with its fangs.
Puffer Sparrow	Untamed Garden	A round, avian monster. If it senses any danger, it puffs up its own body to release sharp quills.
Plague Demon		A demonic lion monster. If it's cursed to death, its evil energy lingers inside its body claws.
Clawed Fiend		This fiendish fighter's fists send foes flying. Its eyes are protected but might also attack.
Harvester		A giant praying mantis whose wildly beautiful dancing turns those who see her into servants.
Mounting Horror	Empyreal Bridge
Taurus Demon
Prosperous Gel