Megami Tensei Wiki
Advertisement

Secret Laboratory is a dungeon in Persona 4. Spawned off within the Midnight Channel by Naoto Shirogane's true feelings, it resembles a sci-fi secret base; according to Kanji Tatsumi being the ones inspired by "tokusatsu" shows.

Profile

  • Background Music: "Secret Base"
  • Available: September 16
  • Deadline: October 5
  • Victim: Naoto Shirogane

To unlock the dungeon, go to the High School and talk to a girl in front of Classroom 1-1. Then, speak with a girl at the Practice Building. Next, talk to a cop at the Shopping District, North near Konishi Liquors - he is available on Mondays, Wednesdays and Fridays. Later, talk to Chie at the Samegawa Flood Plain Riverbank, and then talk to the cop again - who reveals about Naoto's "obsession" towards the cases. Next, speak with the housewife standing in front of the Tatsuhime Shrine, and go to the Shopping District South on Tuesdays, Thursdays and Saturdays to speak with a cop who talks about Naoto being "treated like a child". With these two clues, the dungeon's location is revealed.

Aptly named the Secret Laboratory, the dungeon is different from previous ones where the floors go down instead of up. As the Team continues downwards they are given warnings to turn back. Rise interprets this as Naoto's refusal to mix with other people. On the sixth basement floor, the Team is stopped by a locked door requiring the Leader Key. The Team explores the dungeon to find the Researcher's Key, and goes back a few floors until they find a locked door on the fourth basement floor. This leads to a Boss guarding the Leader Key.

Successfully defeating the "Dominating Machine", the Team continues on until the final basement where they found Naoto confronting his other self. The "Other Naoto" spills out everything, most surprisingly Naoto's gender. Naoto refused to accept his other self and a fight against his shadow commences. Later, Naoto realized that no matter how, everyone must accept his or her true self and continue on with life, regardless of their appearance or personality.

This concludes their rescue, but Naoto's words before succumbing to fatigue is sound and true; the case is far from over.


Treasures

  • Locked Chests: Chewing Soul, Red Battlesuit, Falcon Eye, Moon Potpourri
  • Regular Chests: Chest Key, Tesla Coil, Goho-M, Vanish Ball, Cyclone Magatama,

Persona

Level Persona Arcana Level Persona Arcana Level Persona Arcana
34 Gorgon Empress 34 Setanta Emperor 34 Yamata no Orochi Moon
36 Flauros Hierophant 36 Samael Death 37 Parvati Priestess
37 Pazuzu Devil 38 Dominion Justice 39 Dis Magician
39 Orthrus Hanged Man 40 Genbu Temperance 40 Yatagarasu Sun
41 Oukuninushi Emperor 41 Hitokoto-Nushi Hermit 41 Alraune Moon
42 Hanuman Strength 43 Triglav Chariot 43 Fuu-ki Star
44 Gabriel Empress 44 Succubus Devil 45 Thoth Emperor
45 Hokuto Seikun Hierophant 46 Titan Strength 46 Mot Death
47 Rangda Magician 47 Seiryuu Temperance 47 Narasimha Sun
48 Kikuri-Hime Priestess 48 Kurama Tengu Hermit 48 Girimehkala Moon
49 Throne Justice 50 Kali Strength 50 Ganesha Star
51 Pabilsag Emperor 52 Skadi Empress 52 Cerberus Hierophant

Shadows

Shadow LV HP SP Weak Resist Block Absorb Reflect Floor
Constancy Relic 46 240 246 Agi - - Garu Phys B1, B2
Flattering Hablerie 47 324 199 Bufu Hama, Mudo - Agi - B1, B2
Insolent Basalt 45 190 44 Zio Phys - - - B1, B2
Inviting Nyogo 47 358 174 Agi - Zio - Bufu B1, B2
Rainy Brother 1 44 110 193 Zio - Hama, Mudo P, A, B, G - B1, B2
Rainy Sister 1 44 110 193 Agi - Hama, Mudo P, B, Z, G - B1, B2
Royal Dancer 47 282 210 - - - - - B1, B2
Source Basalt 45 170 44 Hama Phys - - - B1, B2
Dismayed Panzer 48 320 164 Zio Phys - - Garu B3, B4
Dogmatic Tower 48 259 339 - - - - Agi, Zio B3, B4
Flowing Sand 47 274 351 - - - - A, B, Z, G B3, B4
Furious Gigas 50 318 117 - - - - Agi, Zio, Phys B3, B4
Rainbow Twins 48 250 149 Bufu - - Zio Hama B3, B4
Red Sigil 48 247 405 Bufu P, Z, G Hama Agi - B3, B4
Shallow Okina 49 267 322 Zio - Mudo - Hama B3, B4
Chaos Fuzz 51 341 133 - - - - A, B, Z, G, H, M B5, B6
Fail Gene 52 263 315 Bufu, Garu Phys - - - B5, B6
Immoral Snake 52 269 148 Hama, Mudo - Garu - - B5, B6
Mach Wheel 52 240 151 Zio - Phys - - B5, B6
Mighty Beast 50 364 127 Bufu, Hama - - - Phys, Mudo B5, B6
Raindrop Musha 51 1050 119 Agi - - B, Z, G Hama, Mudo B5, B6
Wild Drive 51 270 120 Zio - Phys - Bufu B5, B6
World Balance 52 210 576 Hama, Mudo P, A, B, Z, G - - - B5, B6
Dominating Machine 57 3500 112 - - Hama, Mudo - - B7, B8
Elegant Mother 54 250 455 Mudo Bufu Garu - - B7, B8
Fierce Cyclops 53 221 397 - - Bufu Agi - B7, B8
Hell Knight 55 520 153 - - Hama - - B7, B8
Jotun of Power 54 321 203 Zio - - Bufu Phys B7, B8
Mind Dice 53 312 155 Hama, Mudo A, B, Z, G - - - B7, B8
Order Giant 53 470 87 Bufu Phys - - Zio B7, B8
Power Castle 54 299 385 Garu - Zio Agi Phys B7, B8
Truth Pesce 53 212 138 Agi, Hama - Mudo Bufu - B7, B8
Wicked Turret 53 455 201 - Phys - - - B7, B8
Opulent Hand 50 430 236 - - Hama, Mudo - - B1-B9

Note:

  • Light blue box denotes Shadows that appear during rainy days.
  • White box denotes rare Shadow.

Bosses

Shadow LV HP SP Weak Resist Block Absorb Reflect Floor
Dominating Machine 53 3070 300 - - Hama, Mudo - - B4
Shadow Naoto 55 5500 1800 - Agi Hama, Mudo - - B9
Extreme Vessel 57 4800 3000 Garu - Hama, Mudo - - B9

Note:

  • Extreme Vessel appears from 6th October onwards.
Characters
Playable Protagonist - Yosuke Hanamura - Chie Satonaka - Yukiko Amagi - Kanji Tatsumi - Rise Kujikawa - Teddie - Naoto Shirogane
Social Link Margaret - Nanako Dojima - Ryotaro Dojima - Naoki Konishi - Kou Ichijo - Daisuke Nagase - Hisano Kuroda - Sayoko Uehara - Yumi Ozawa - Ayane Matsunaga - Ai Ebihara - Fox - Shu Nakajima - Eri Minami - Marie - Tohru Adachi
Major Igor - Mayumi Yamano - Misuzu Hiiragi - Saki Konishi - Mitsuo Kubo - Hanako Ohtani - Kinshiro Morooka - Noriko Kashiwagi - Taro Namatame - Old Lady Shiroku - Master Daidara - Minoru Inoue - Yuuta Minami - Kaneko - Aika Nakamura - President Tanaka - Chihiro Fushimi - Mr. Edogawa - Kanami Mashita - Moel Gas Station Attendant
Major enemies Shadow Yosuke - Shadow Chie - Shadow Yukiko - Shadow Kanji - Shadow Rise - Shadow Teddie - Shadow Mitsuo - Shadow Naoto - Kunino-sagiri - Ameno-sagiri - Kusumi-no-Okami - Izanami
Locations
Inaba Central Shopping District - Dojima Residence - Junes Department Store - Samegawa Flood Plain - Velvet Room - Yasogami High School
Midnight Channel Twisted Shopping District - Yukiko's Castle - Steamy Bathhouse - Marukyu Striptease - Void Quest - Secret Laboratory - Heaven - Magatsu Inaba - Hollow Forest - Yomotsu Hirasaka
Other Okina City - Shichiri Beach - Midnight Trivia Miracle Quiz - Tatsumi Port Island (Gekkoukan High School - Club Escapade - Iwatodai Station)
Music
Albums Original Soundtrack (Persona 4 / Golden / The Animation) - Never More -Reincarnation- - Persona 4: The Golden Animation Special Arrange CD - Persona 20th Anniversary All Time Best Album - Re:BRiLLiANCE
Songs "Ain't Nobody Can Hold Me Down" - "Alone in this World" - "Aria of the Soul" - "Studio Backlot/Backside of the TV" - "Beauty of Destiny" - "Dazzling Smile" - "Falling into Right Places" - "Heartbeat, Heartbreak" - "Heaven" - "I'll Face Myself" - "Just Like The Wind" - "Key Plus Words" - "Koisuru Meitantei" - "Never More" - "Next Chance to Move On" - "Pursuing My True Self" - "Reach Out To The Truth" - "Shadow World" - "Signs of Love" - "Sky's The Limit" - "SNOWFLAKES" - "Someone Else's Man" - "Time For True Revelation" - "Time To Make History" - "True Feelings" - "True Story" - "The Way of Memories" - "We Are One and All" - "Ying Yang" - "Your Affection"
Archives
Terminology Persona (Initial / Ultimate) - Persona user - Glasses - Fog - Shadow - Shadow Self - Party - Tactics - All-out Attack - Shuffle Time - Arcana Chance - Fusion Forecast - Weather Forecast - Investigation Team - Mystery Food X - Phoenix Ranger Featherman R
Lists Arcana - Personas - Shadows - Skills - Items (Persona 4 / Golden) - Requests - Status Changes - Activities - Calendar - Golden Trophies - The Animation / Golden Animation Episodes - Patches and Updates - Steam Profile Items
School Life Weather Forecast - Seasons - Social Link - Social Stats - Yen - Class - Studying - Books - Movie Theater - Bed - Fishing - Cooking - Part-time Jobs - Shrine - Scooter - Gardening - School Club - Bug Catching - Refrigerator - Crane Machine - Chagall Café - Tanaka's Amazing Commodities - Cat
Other Media
Games Golden - Arena - Arena Ultimax - Dancing All Night
Productions The Animation / -The Factor of Hope- / The Golden Animation - Visualive / the Evolution - Persona Stalker Club - 「PERSORA AWARDS」 - PERSORA AWARDS 2 - PERSORA AWARDS 3 - Persora -The Golden Best- - Persona VS
Publications Manga - The Magician - Dengeki Comic Anthology (the Animation / The Golden / The Golden Animation) - Kiri no Amnesia - Your Affection - Persona x Detective Naoto (manga) - Yasoinaba Case File - Persona Magazine
Drama CDs Persona 4 (Vol.1 / Vol.2 / Vol.3) - Persona 4 The Animation (Vol.1 / Vol.2) - Persona 4 Golden (Vol.1 / Vol.2)
Mobile Games The Card Battle - Colors - Persona 4: The Slot - Persona 4 the Pachinko
Events Music Live 2008 - Music Live 2009 - Music Tour 2010 - Music Live 2012 - Music Fes 2013 - Music Box 2014 - Super Live 2015 - Livehouse Tour 2015 - Super Live 2017 - Super Live 2019- 25th Anniversary Symphonic Concert
20th Anniversary Festival - 25th Anniversary - 25th FES
Miscellaneous Merchandise
Advertisement