Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro and Mantra Headquarters Walkthrough

A complete walkthrough part 4 and strategy guide for Ikebukuro and Mantra Headquarters in Shin Megami Tensei III: Nocturne HD Remaster (SMT 3: Nocturne). Included is a list of recruitable demons, normal and boss enemies, obtainable items, and maps.

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro and Mantra Headquarters Walkthrough Part 4

Walkthrough Part 4 in Shin Megami Tensei III: Nocturne HD Remaster

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro and Mantra Headquarters Walkthrough Part 4

Here is our Shin Megami Tensei III: Nocturne HD Remaster main story walkthrough and guide for Ikebukuro and Mantra Headquarters. Included is a list of recruitable demons, normal and boss enemies, obtainable items, and maps.

Shin Megami Tensei III Nocturne HD Remaster Walkthroughs

Overview

Areas Ikebukuro and Mantra Headquarters
Recommended Level Level 21 or higher
Bosses 7 bosses

All Trophies and Achievements

Characters

Here is a list of characters covered and interacted in this walkthrough:

All Characters

Character Location
Shin Megami Tensei III: Nocturne: HD Remaster - Protagonist Demi-fiend Main CharacterProtagonist All Locations
Shin Megami Tensei III: Nocturne: HD Remaster - Isamu NittaIsamu Nitta Mantra Headquarters

Magatamas

Here is a list of Magatamas accessible in this walkthrough:

All Magatamas

Magatama Level Alignment Weaknesses
Narukami Lv.21 Light Ice

Enemies

Here is a list of enemies encountered in this walkthrough:

Demonic Compendium

Ikebukuro Normal Enemies

Enemy Level Demon Race Weaknesses
Angel Lv.11 Divine Force, Death
Inugami Lv.13 Beast Force
Sudama Lv.13 Jirae Fire
Manikin Lv.13 Corpus None
Nozuchi Lv.15 Snake Elec
Bicorn Lv.15 Wilder Elec
Yaka Lv.17 Haunt Ice
Archangel Lv.18 Divine Ice, Death
Nekomata Lv.18 Beast Elec
Momunofu Lv.20 Brute Nerve, Mind, Curse
Taraka Lv.20 Femme Ice
Badb Catha Lv.23 Beast Elec
Oni Lv.25 Brute Nerve

Mantra Headquarters Normal Enemies

Enemy Level Demon Race Weaknesses
Angel Lv.11 Divine Force, Death
Inugami Lv.13 Beast Force
Bicorn Lv.15 Wilder Elec
Yaka Lv.17 Haunt Ice
Archangel Lv.18 Divine Ice, Death
Nekomata Lv.18 Beast Elec
Pyro Jack Lv.19 Fairy Ice
Taraka Lv.20 Femme Ice
Badb Catha Lv.23 Beast Elec
Oni Lv.25 Brute Nerve
Principality Lv.28 Divine Death, Mind

Boss Enemies

Boss Guides

Enemy Level Demon Race Weaknesses
Oni Lv.25 Brute Nerve
Orthus Lv.30 Beast Ice
Yaksini Lv.35 Femme Elec
Thor Lv.35 Kishin None
Raidou Kuzunoha the XIV Lv.36? Summoner None
Dante Lv.36 Fiend None
Daisoujou Lv.37 Fiend None

Recommended Stats

Here is the stat build we used so far in this walkthrough. Feel free to make your own using our guide:

Recommended Stat Builds

Level Strength Stat Magic Stat Vitality Stat Agility Stat Luck Stat
Level 20 2 18 2 5 2
Level 40 10 25 2 10 2
Level 60 25 25 2 15 2
Level 80 29 25 5 20 10

Recommended Skills

Here is the skill build we used so far in this walkthrough. Feel free to make your own using our guide:

Recommended Skill Builds

Skill # Skill Name Magatama Skill # Skill Name Magatama
Skill 1 Heat Wave Kamudo Skill 5 Shock Narukami
Skill 2 Fire Breath Shiranui Skill 6 Ice Boost Wadatsumi
Skill 3 Ice Breath Wadatsumi Skill 7 Force Boost Hifumi
Skill 4 Tornado Hifumi Skill 8 Mana Bonus Wadatsumi

Zoshigaya Cemetery

Shin Megami Tensei III: Nocturne HD Remaster - Zoshigaya Cemetery

Zoshigaya Cemetery Walkthrough

1 After coming out the ladder from Ginza Great Underpass, you’ll emerge at Zoshigaya Cemetery near Ikebukuro.
2 You can talk to the blue spirit nearby and look for the hidden chest (Magic Incense x1 if Kagutsuchi or Life Stone x1) in the corner behind the small house.
3 After getting the item, leave the cemetery and return to the world map. Make sure that your demon allies are in full HP and MP.
4 Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro World Map Underground TunnelBefore entering Ikebukuro in your north, go northwest instead and locate an underground tunnel below a railway.
5 Pass through it and acquire the item from the chest (Jewel x1).
6 After that, head for Ikebukuro.

Ikebukuro

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro

Recommended Demons to Recruit

Enemy Level Demon Race Weaknesses
Momunofu Lv.20 Brute Nerve, Mind, Curse

Ikebukuro Walkthrough

1 When you arrive at the “1F”, ignore the Oni guard for now and enter the mall.
2 There are many facilities accessible in the “B1F” area such as the Fountain of Life (first west door), Terminal (second west door), Cathedral of Shadows (second east door), Junk Shop (third east door). The first east door leads to another area, including the Mantra Headquarters.
3 Shin Megami Tensei III: Nocturne HD Remaster - Cathedral of Shadows Register DemonsWhen you visit Catherdral of Shadows, you can now access the Demonic Compendium. Make sure to register your demons before leaving. Your former demons are also registered there in the compendium. You can fuse for other demons as well such as Archangel (for Expel skills, buff skills, and debuff skills) and Momunofu (for physical skills, buff skills, and debuff skills).
4 Talk to the Oni in the middle of the area. The demon will ask you a question and your response will influence your reason or story ending. You can choose an answer immediately or come back again to it to give your response. Choose between “Top Answer” (Yosuga Reason↑), “Middle Answer” (Shijima Reason↑), or “Bottom Answer” (No Effect).
5 Use the escalator to descend to the “B2F” level, head north, and go to the east corner to find a floating cube (Jewel x1).
6 Go to the Terminal and SAVE your current game. Then return to the Oni guard. Talk to it and initiate the battle.

Defeat Oni

1 Shin Megami Tensei III: Nocturne HD Remaster - Oni Demon Boss BattleDefeat Oni (Exploit Nerve weakness). Equip Kamudo Magatama prior to the boss fight.
Oni Boss Guide
2 Use Physical attacks and Magic attacks to damage the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Acquire the item (Life Stone x1) after the battle.

Ikebukuro Walkthrough Part 2

1 After defeating Oni, enter the mall and proceed to the first east door (compass: east). Go upstairs but don’t enter the entrance to Mantra Headquarters.
2 Turn east (compass: east) and south (compass: south) to reach the end of the floor.
3 Enter the western door and prepare for another boss fight.

Defeat Onis

1 Shin Megami Tensei III: Nocturne HD Remaster - Oni x2 Demon Boss BattleDefeat Onis (Exploit Nerve weakness). Equip Kamudo Magatama prior to the boss fight.
Oni Boss Guide
2 Use Physical attacks and Magic attacks to damage the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Acquire the item (Hoeger? x1) after the battle.

Ikebukuro Walkthrough Part 3

1 While inside the room, acquire the item from the left chest and acquire the item (Life Stone x1) from the east floating cube (Bead x2).
2 Do not examine the middle floating cube since it is an HP trap.
3 Leave the room and enter the Mantra Headquarters (you can also use the Fountain of Life to recover and Terminal to SAVE your current game).
4 Talk to the Manikins and go upstairs. Then, enter the Mantra Headquarters.

Ikebukuro Dialogue Choices

Here is a breakdown of dialogue choices for each conversation event in this area:

All Reason Endings True Demon Ending

Conversation with Oni (First Question)

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Oni Conversation Event 1

Dialogue Choice Dialogue Choice Impact
“I got it.” No Effect
“Didn’t know.” No Effect

Conversation with Oni (Second Question)

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Oni Conversation Event 2

Dialogue Choice Dialogue Choice Impact
“Yes.” Yosuga Reason↑
“No.” Shijima Reason↑
“I don’t want to answer.” No Effect (You can talk to Oni again to give another answer.)

Mantra Headquarters

Shin Megami Tensei III: Nocturne HD Remaster - Mantra Headquarters

Recommended Demons to Recruit

Enemy Level Demon Race Weaknesses
Momunofu Lv.20 Brute Nerve, Mind, Curse
Taraka Lv.20 Femme Ice

Mantra Headquarters Walkthrough Part 1

1 After the cutscene, you’ll find yourself inside a cell of Mantra HQ 3F level. Acquire the item (Jewel x1) from a floating cube nearby.
2 Examine both sides of your cell to listen to the prisoners. Then, your cell will be opened.
3 Once you gain control of your character, go east (compass: north) and west (compass: west). Enter the west door.
4 After the cutscene, you’ll be undergoing three boss fights. Make sure to recover HP and SP and setup of your Magatama before each fight.
5 Speak to the first, second, and third demon and select “Yes” to start the boss fight.

Defeat Orthrus

1 Shin Megami Tensei III: Nocturne HD Remaster - Orthrus Demon BossDefeat Orthrus (Exploit Ice weakness). Equip Shiranui Magatama prior to the boss fight.
Orthrus Boss Guide
2 Use Ice attacks to damage and freeze the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Deal Physical attacks boosted with Focus to further damage the boss.

Defeat Yaksini

1 Shin Megami Tensei III: Nocturne HD Remaster - Yaksini Demon BossDefeat Yaksini (Exploit Elec weakness). Equip Hifumi Magatama prior to the boss fight.
Yaksini Boss Guide
2 Use Elec attacks to damage and shock/paralyze the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Deal Physical attacks boosted with Focus to further damage the boss.

Defeat Thor

1 Shin Megami Tensei III: Nocturne HD Remaster - Thor Demon BossDefeat Thor (Use Phys and Magic attacks except for Elec). Equip Kamudo Magatama prior to the boss fight.
Thor Boss Guide
2 Use Fire, Ice, or Force attacks to damage and freeze the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Deal Physical attacks boosted with Focus to further damage the boss.
5 Acquire Narukami Magatama after winning the boss fight.

Mantra Headquarters Walkthrough Part 2

1 After the Thor battle, you will be transferred back to Ikebukuro mall, “1F”. Recover lost HP and MP. Also, SAVE your game using the Terminal room.
2 Get your party ready with Ame-no-Uzume, Momonofu, and another strong ally demon such as Archangel. Return to Mantra HQ and watch another cutscene.
3 Prepare for another boss fight either with Raidou Kuzunoha the XIV (Default) or Dante (DLC Boss).

Defeat Raidou Kuzunoha the XIV

1 Shin Megami Tensei III: Nocturne HD Remaster - Raidou Mantra HQ Demon BossDefeat Raidou Kuzunoha the XIV (Use Phys and Magic attacks). Equip Kamudo Magatama prior to the boss fight.
Raidou Kuzunoha the XIV Boss Guide
2 Use Magics attacks to damage the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Deal Physical attacks boosted with Focus to further damage the boss.

Defeat Dante

1 Defeat Dante (Use Phys and Magic attacks). Equip Kamudo Magatama prior to the boss fight.
Dante Boss Guide
2 Use Magics attacks to damage the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Deal Physical attacks boosted with Focus to further damage the boss.

Mantra Headquarters Walkthrough Part 3

1 Recover lost HP and MP and descend the Mantra HQ stairs. Proceed to the “B1F” east door.
2 Go north (compass: east) and west (compass: north). Reach the end and enter the third east door.
3 In the large room, look for a floating cube (Repulse Bell x1) in the south across the resting Manikin.
4 Enter the north door, turn right and go to “1F” using the escalator. In the “1F” level, follow the pathway and enter the west door.
5 You’ll be at a scaffolding pathway and reach the chest (Life Stone x1) at the end.
6 Enter Mantra HQ again but you can now explore the area freely. In “1F” level, go north and look for the Terminal room behind the Oni guard.
7 After you SAVE your game, enter the first east door and go right. Enter the room with a Nue demon and acquire the item (Mamudo Rock x1) from the floating cube.
8 Leave the room and move east (compass: north) to enter the north door.
9 Go upstairs and proceed to the “2F” level. You emerge from the east door and proceed to the opposite west door.
10 You’ll be in front of the elevator. Go west first (compass: south) and enter the second east door. Examine the floating cube (Attract Pipe x1) to get another item.
11 Leave and enter the elevator. Transfer to “3F” level.
12 Go west and proceed to the east door. Keep going straight and turn east passing through the small arena you had boss battles before. Then, move eas to enter the west door (compass: west).
13 Enter another elevator and choose “60F”. You’ll be at the rooftop in front of ascending stairs. Choose the east stairs first to find a floating cube (3,000 Macca).
14 Go upstairs and reach the “64F” level. Enter the large door and chamber. Watch a brief cutscene.
15 Shin Megami Tensei III: Nocturne HD Remaster - Mantra HQ Gozu-TennohGozu-Tennoh will ask you a question and your response will influence your reason or story ending. Choose between “Top Answer” (Yosuga Reason↑), “Middle Answer” (Shijima Reason↑), or “Bottom Answer” (Musubi Reason↑).
16 After the cutscene, head back to Ikebukuro. You can use the “1F” level Terminal room to transfer to Ikebukuro mall.
17 Visit the Fountain of Life and keep your main party intact. Return stairs leading to Mantra HQ and don’t go upstairs. Speak to the blue spirit below the stairs and flag the boss fight.
18 Enter the east large room again and enter the north door. Walk towards the path leading to the elevator to trigger another boss fight.

Defeat Daisoujou

1 Shin Megami Tensei III: Nocturne HD Remaster - Daisoujou Demon BossDefeat Daisoujou (Use Phys and Magic attacks). Equip Kamudo Magatama prior to the boss fight.
Daisoujou Boss Guide
2 Use Magics attacks to damage the boss. Focus on casting buffs and debuffs first before executing your offense.
3 Land debuffs starting with Sukunda/Fog Breath followed by Rakunda and Tarunda/War Cry. To make the boss miss its attacks and skills while you attempt to kill it.
4 Deal Physical attacks boosted with Focus to further damage the boss.
5 Acquire Candelabrum of Eternity x1 after winning the boss fight. After the boss fight, SAVE and transfer to Shibuya. Then, go to the world map and enter the Assembly of Nihilo.

Mantra Headquarters Dialogue Choices

Here is a breakdown of dialogue choices for each conversation event in this area:

All Reason Endings True Demon Ending

Conversation with Gozu-Tennoh

Shin Megami Tensei III: Nocturne HD Remaster - Mantra HQ Gozu-Tennoh Conversation Event 1

Dialogue Choice Dialogue Choice Impact
“Follow.” Yosuga Reason↑
“Turn down.” Shijima Reason↑
“Can’t decide.” Musubi Reason↑

Item Locations

Below are the in-game locations of the obtainable items in this walkthrough:

All Item Locations

Zoshigaya Cemetery Item Locations

In-Game Location Item and Location
Shin Megami Tensei III: Nocturne HD Remaster - Zoshigaya Cemetery Chest 1 Magic Incense x1 (Full Moon) or Life Stone x1
Behind the house

Ikebukuro Item Locations

In-Game Location Item and Location
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 1 Jewel x1
Within world map north of the underground tunnel
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 8 Jewel x1
East corner of the hall of Ikebukuro Mall, B2F
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Chest 1 Life Stone x1 (Onis Encounter)
The room across Mantra HQ Ikebukuro, 1F
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 2 Bead x2 (Onis Encounter)
The room across Mantra HQ Ikebukuro, 1F
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 4 Repulse Bell x1
Inside the large room east of Mantra HQ Ikebukuro, B1F
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Chest 2 Life Stone x1
Above the large room east of Mantra HQ Ikebukuro, 1F

Mantra Headquarters Item Locations

In-Game Location Item and Location
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 3 Power Incense x1 (Full Moon) or Bead x1
Inside the prison cell of Mantra HQ, Ikebukuro, 3F
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 5 Mamudo Rock x1
Inside the room with Nue in Mantra HQ, Ikebukuro, 1F
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 6 Attract Pipe x1
Inside the room with a Yomotsu-Ikusa in Mantra HQ, Ikebukuro, 2F
Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro Floating Cube 7 3,000 Macca
Rooftop of Mantra HQ, Ikebukuro, 60F

Item Location Maps

Here are the different areas that you will explore for this walkthrough. Items are also marked on each map:

All Item Location Maps

Legend

Symbol Meaning
Red Mark or Icon Stairs
Blue Mark or Icon Floating Cubes or NPC to each item
Green Mark or Icon Key Points
Orange Mark or Icon Trap Objects

Zoshigaya Cemetery

Shin Megami Tensei III: Nocturne HD Remaster - Zoshigaya Cemetery Map

Symbol Item
Blue Mark #1 Magic Incense x1 (Full Moon) or Life Stone x1

Ikebukuro B1F

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro B1F Map

Symbol Item
Blue Mark #1 Repulse Bell x1

Ikebukuro B2F

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro B2F Map

Symbol Item
Blue Mark #1 Jewel x1

Ikebukuro 1F

Shin Megami Tensei III: Nocturne HD Remaster - Ikebukuro 1F Map

Symbol Item
Blue Mark #1 Life Stone x1
Blue Mark #2 Life Stone x1
Blue Mark #3 Bead x2

Mantra Headquarters 1F

Shin Megami Tensei III: Nocturne HD Remaster - Mantra HQ 1F Map

Symbol Item
Blue Mark #1 Mamudo Rock x1

Mantra Headquarters 2F

Shin Megami Tensei III: Nocturne HD Remaster - Mantra HQ 2F Map

Symbol Item
Blue Mark #1 Attract Pipe x1

Mantra Headquarters 3F

Shin Megami Tensei III: Nocturne HD Remaster - Mantra HQ 3F Map

Symbol Item
Blue Mark #1 Power Incense x1 (Not accessible yet)
Blue Mark #2 Jewel x1
← Ginza and Great Underpass of Ginza Assembly of Nihilo →

Other Walkthroughs

Shin Megami Tensei III: Nocturne HD Remaster - Walkthroughs

Main Story Walkthroughs

▼All Main Story Walkthroughs
Yoyogi Park Station, Yoyogi Park, and Shinjuku Medical Center Yoyogi Park, Shibuya, and Amala Network
Ginza and Great Underpass of Ginza Ikebukuro and Mantra Headquarters
Assembly of Nihilo and Mantra Headquarters Revisited Kabukicho Prison and Ikebukuro Tunnel
Asakusa and The Obelisk Amala Network Revisited
Yoyogi Park Revisited Amala Temple
Mifunashiro and Yurakucho Station Tokyo Diet Building
The Obelisk Revisited and Tower of Kagutsuchi -
All Main Story Walkthroughs

Labyrinth of Amala Walkthroughs

▼All Labyrinth of Amala Walkthroughs

Shin Megami Tensei III: Nocturne HD Remaster Recommended Article List

Shin Megami Tensei III: Nocturne HD Remaster - Game Category Banner Shin Megami Tensei 3: Nocturne HD Remaster Walkthrough and Guides

Top Guides

▼All Recommended Guides
Home Page Main Story Walkthroughs Labyrinth of Amala Walkthroughs
Bosses Characters Magatamas
Demonic Compendium Strategy Guides Game Database
Puzzle Boy Best Stat Builds Best Skills Builds
Best Magatamas Best Ally Demons Best Party Setups
Reason Endings True Demon Ending Trophies

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2 Comments

  1. Saying things like, go east (compass west) is really not the right way to do this, turn right (compass west) would be so much simpler for people to follow.

  2. Step 5 in Defeat Daisoujou should say “transfer to Ginza” instead of “transfer to Shibuya.”
    Otherwise, thanks for the guide. It helps a lot 🙂