Jahannam's Gate

Final dungeon of the main story which is unlocked after clearing Castle Keep.
Pekeji or Oryu can be brought along if you'd like - They can also be recruited inside the dungeon.
Pots and staves are found unidentified, and blessed or cursed items can be generated.
Overall, the dungeon portion isn't very difficult with carry-in items, but the 2 boss fights at the end can be tricky.

Overview

UnlockClear Castle Keep.
EntranceTown of Ilpa (South exit)
JP Name ジャハンナムの扉
Floors 23F Allies Yes
Bring Items Yes Bring Level Ups Yes
Bring Gitan Yes Starting Item Onigiri
Unidentified Weapons, Shields, Pots, Staves
Shops 3-19F Monster Houses 3-19F
Clear Icon icon jahannam Reward None

Strategy

General

Level up at the Training Hall before entering if you want an easier time.

Staves can be identified by swinging them at a monster from a distance, so save Identify Scrolls for pots.
It's best to name unidentified items once you recognize their effects.

Don't equip unidentified weapons and shields unless you didn't bring equipment or you come across a Strip Trap.
If an item is cursed, you won't be able to unequip it unless you purify it or step on a Strip Trap.

Mini Mixers can be found between 17-18F, allowing for equipment synthesis.
Unlike other games in the series, Mini Mixers don't have different item category recipes for runes in this game,
so you can only synthesize runes via weapons + weapons, shields + shields, or bracelets + bracelets.

Carry-In Items

You don't necessarily need all of these items, but they definitely help make for a smoother run.

Equipment

A weapon and shield set that grants a resonance effect gives you a greater advantage.

WeaponShieldEffect
KatanaIron ShieldMax HP +20
Demon SlayerDemon ShieldMax strength +4
Beetle AxeBeetle ShieldMax strength +3

※ Iron Shield can be purchased in Town of Ilpa.

Nice bracelets to have on hand:

BraceletNotes
Scout BraceletReveals the locations of characters and items.
Vision BraceletLets you see hidden traps and invisible monsters.
Heal BraceletRestore 5 HP per turn, but also doubles hunger rate.
Nirvana BraceletStops natural fullness depletion.

※ Unequip bracelets when fighting monsters to prevent them from breaking.

Other Items

ItemNotes
Revival GrassRevives you if you collapse.
Swift GrassBring 2~3 for the boss fights.
Dragon GrassBring 4 for the 1st boss.
Slumber Scroll
Confusion Scroll
Nice for Monster Houses.
Escape ScrollReturn to Town of Ilpa with your items.
Decoy Staff
Paralysis Staff
Useful in various situations.
Storage PotCarry more items.
Heal PotInsert an item to restore all of your HP.
FoodKeep onigiri in Storage Pots.

Floor Guide

1-9F

Regular shops can be generated between 3-9F, so check every room.

Enemies shouldn't be much of a threat if you brought items as suggested.
If you have a Nirvana Bracelet, feel free to farm monsters for experience points until the wind blows.
However, Curse Girl (3-4F) and Gazer (5-7F) can destroy items, so you might want to rush stairs on those floors.

If you forgot to bring an Escape Scroll, hunt Rock Heads (6-7F) until you obtain one.

10-14F

Specialty shops that only sell monster meat can be generated between 10-14F.
Bow Boy, Pumphantasm, and Chicken meat can be useful, but none are essential, so rush stairs if you want.

Curse Sister (11-14F), Daze Hermit (12-14F), and Demon Warrior (12-14F) are the only notable threats.
Daze Hermit's Inaccurate status lasts for 5 turns. Use items if a Ghost Warrior levels up a different monster.

15-22F

Regular shops can be generated between 15-19F - If you see a Sturdy Bracelet, do everything you can to buy it.
※ Sturdy Bracelet never breaks (under most circumstances) - Use it as a base for synthesis.

Explochins (16-18F) deal damage equal to 50% of your current HP when they explode, so avoid being adjacent.
If an important item gets stolen by a Bad Zalokleft (16-18F), go hunt it down to reclaim it.
Gyaza (16-19F) is basically immune to most attacks other than direct attacks.

Throw 2 items at a Mini Mixer (17-18F) to synthesize them. (Weapon + weapon, shield + shield, or bracelet + bracelet)
※ Mini Mixer's attack power increases each time it eats an item, so use a scroll or staff to safely defeat it.

Gyadon (19-21F) reduces a staff's use count to 0, but it can't peck staves inside pots.
Dark Vassal (19-22F) is immune to magic bullets, and Demon Vassal (19-22F) is immune to scroll effects.
Dragon (20-22F) breathes fire in a straight line which deals 30 damage - Use Mage Staff or such instead of trading hits.
Overall, it's best to rush stairs between 20-22F.

Boss 1

Curas nullifies scrolls, staves, and projectiles - This significantly limits your options.
The easiest strategy is to use Swift Grass → Dragon Grass x 4 → Finish with a direct attack.
Otherwise, you'll probably just have to trade hits while relying on healing items.

NameHPAtkDefExpElem.Notes
Curas20150600-Nullifies scrolls, staves, and projectiles.
Deals knockback, and can drain 25 HP from Shiren.
Eaten items like Swift Grass and Dragon Grass are effective.

Boss 2

This fight is usually much easier, as long as your damage output isn't very low.
The main gimmick is that while Evil God doesn't attack, if you take too long to defeat it, you get an auto game over.
Koppa will warn you if you're nearing the bad ending, and you kind of have to do nothing for a while to have it happen,
so don't feel too pressured about it.

Otherwise, the only threats are the Dark Vassals and Demon Vassals that spawn whenever you defeat a part.
Remember that Dark Vassals are immune to staves, and Demon Vassals are immune to scrolls.
Just keep attacking and aim straight for the blue core, and you should be fine.

NameHPAtkDefExpElem.Notes
Evil God (Part A)800330-Evil God doesn't attack.
Dark Vassal type monsters appear when a part is destroyed.
Evil God (Part B)1200400
Evil God (Core)2011200The fight ends once the core is destroyed.

Monsters

Monster Table

F Colors: Shop is possible Specialty Shop is possible
H Colors: Monster House is possible
Spawn Rates: Low Medium High
Enemy Colors: Farming Useful Destroys Items Dangerous

FHMonsters
1MamelPit MamelBaby Mage
2MamelPit MamelBaby MageFog HermitShady WispTeaser Monkey
3ChintalaCurse GirlBoy MageFog HermitShady WispTeaser Monkey
4ChintalaCurse GirlBoy MageFog HermitDagyanDeath Reaper
5GazerGlare SnakeBoy MageTrap GeninDagyanDeath ReaperSheep Priest
6GazerGlare SnakeRock HeadTrap GeninDagyanDeath ReaperSheep PriestPumphantasmPitcher Plant
7GazerWolf DroidRock HeadTrap GeninDoze MageSoldier AntSheep PriestPumphantasmPitcher Plant
8Wolf DroidDozy GenieDoze MageSoldier AntFloor DragonPumphantasmPitcher Plant
9Bow BoyWolf DroidDozy GenieZen GuruDoze MageSoldier AntFloor DragonSamuraidonPitcher Plant
10WarabiCrossbow BoyDozy GenieZen GuruFloor DragonSamuraidon
11WarabiCrossbow BoyCurse SisterZen GuruHealer RabbitSamuraidon
12WarabiDark SlasherCurse SisterDaze HermitAlert FlyHealer RabbitDemon Warrior
13Dark SlasherCurse SisterDaze HermitAlert FlyHealer RabbitDemon WarriorPunter Scarab
14Dark SlasherCurse SisterDaze HermitAlert FlyHealer RabbitDemon WarriorPunter ScarabVampire Baron
15Groggy GeniePumphantomLobber BeetleVampire Baron
16GyazaBored KappaPumphantomLobber BeetleExplochinBad Zalokleft
17GyazaBored KappaMini MixerLobber BeetleExplochinBad ZalokleftLamp PufferSquid King
18GyazaBored KappaMini MixerExplochinBad ZalokleftLamp PufferSquid King
19GyazaGyadonDark VassalDemon VassalGawkulusSneaky Slasher
20DragonGyadonDark VassalDemon VassalGawkulusSneaky SlasherTaur
21DragonGyadonDark VassalDemon VassalGawkulusSneaky SlasherTaur
22DragonDark VassalDemon VassalHealer RabbitTaur
23Boss

Items

The values like "1-22" in columns represent the floor range where the item can appear.

  • F = Floor
  • S = Shop
  • M = Monster
  • P = Presto Pot

WeaponGrass
NameFSMPNameFSMP
Beetle Axe1-221-22Expand Seed1-223-19 ※11-22
Katana1-221-22Life Grass1-223-19 ※11-22
Mallet1-221-22Otogiriso1-223-19 ※11-22
Kabura's Blade1-22Dizzy Grass1-221-22
Club1-141-22Weeds23
Sky Splitter15-191-22Happy Grass3-19 ※11-22
Ghost Sickle3-19 ※1Sleep Grass1-221-22
Spark Sword3-91-22Swift Grass1-223-19 ※11-22
Bronze Sword1-221-22Warp Grass1-22
Pickaxe1-221-22Strength Grass1-223-19 ※11-22
Dotanuki1-22Antidote Grass1-223-19 ※11-22
Dragon Killer3-19 ※1Poison Grass1-221-22
Demon Slayer1-223-91-22Dragon Grass1-221-22
Crescent Arm3-9Revival Grass1-223-19 ※11-22
Aura Spear15-19Sight Grass1-223-19 ※11-22
ShieldHerb1-221-22
NameFSMPScroll
Beetle Shield1-221-22NameFSMP
Froggo Shield15-19Navigation Scroll1-223-19 ※11-22
Happy Shield15-19Great Hall Scroll1-22
Blast Shield1-223-19 ※11-22Purify Scroll3-19 ※11-22
Bronze Shield1-221-22Confusion Scroll1-221-22
Kabura's Guard1-22Identify Scroll1-221-22
Iron Shield1-221-22Air Slash Scroll1-223-19 ※11-22
Walrus Shield15-19Sanctuary Scroll1-22
Dragon Shield3-91-22Fear Scroll1-221-22
Holy Shield15-191-22Earth Scroll6-223-19 ※11-22
Counter Shield1-223-91-22Heaven Scroll6-223-19 ※11-22
Diet Shield1-223-91-22Slumber Scroll1-223-19 ※11-22
Demon Shield3-9Power Up Scroll1-223-19 ※11-22
Fuuma Shield1-223-91-22Plating Scroll3-19 ※11-22
Wood Shield1-221-22Escape Scroll10-226-7
BraceletTrap Erase Scroll1-223-19 ※11-22
NameFSMPStaff
Heal Bracelet1-223-19 ※11-22NameFSMP
Sturdy Bracelet15-19Empathy Staff1-221-22
Calm Bracelet1-223-19 ※11-22Transient Staff1-223-19 ※11-22
Warp Bracelet1-22Paralysis Staff1-223-19 ※11-22
Strength Bracelet1-223-91-22Miss Staff3-19 ※11-22
Strider Bracelet1-223-19 ※11-22Pinning Staff1-223-19 ※11-22
Scout Bracelet1-223-19 ※11-22Swap Staff1-221-22
Holy Bracelet1-223-19 ※11-22Seal Staff1-223-19 ※11-22
Nirvana Bracelet1-223-19 ※11-22Knockback Staff1-221-22
Vision Bracelet1-223-19 ※11-22Unlucky Staff3-19 ※1
Cleansing Bracelet1-221-22Presto Staff1-221-22
ProjectileMage Staff1-221-22
NameFSMPDecoy Staff6-223-19 ※11-22
Wood Arrow1-229Pot
Iron Arrow6-223-19 ※110-111-22NameFSMP
FoodHeal Pot6-223-19 ※11-22
NameFSMPSynthesis Pot6-223-19 ※11-22
Large Onigiri1-2215-191-22Identify Pot1-221-22
Onigiri1-221-22Blessing Pot6-223-19 ※1
Huge Onigiri3-91-22Presto Pot1-22
Special Onigiri3-91-22Storage Pot6-223-19 ※11-22
MeatWater Pot1-221-22
NameFSMP
Chicken10-14
Porky10-14
Pumphantasm10-14
Bow Boy10-14
Mamel10-14

※1 - Never in shops between 10-14F.
※ Escape Scroll - Rock Head (6-7F)
※ Wood Arrow - Bow Boy (9F)
※ Iron Arrow - Crossbow Boy (10-11F)

Traps

FTraps
1-3Pit, Bind, Trip Stone, Rust, Sleep, Curse, Spring, Log
4-9Pit, Bind, Trip Stone, Rust, Sleep, Poison Arrow, Curse, Spring, Log
10-11Bind, Hunger, Strip, Iron Arrow, Spoil, Slow, Spring
12Trip Stone
13-18Bind, Hunger, Strip, Iron Arrow, Spoil, Curse, Spring
19-22Bind, Alert, Trip Stone, Sleep, Strip, Slow, Curse, Spring