Master Detective Archives: Rain Code – Chapter 4 Mystery Labyrinth Full SS Rank Walkthrough

Master Detective Archives: Rain Code is the latest game from Danganronpa creator Kazutaka Kodaka and Too Kyo Games, and it will put your mind to the test in much the same way. As in Danganronpa, collecting evidence in Rain Code is relatively linear and straightforward, so you probably won’t need much help there,  but things get tricky once you delve into the game’s signature Mystery Labyrinths.

Much like Danganronpa’s elaborate trials, Mystery Labyrinths task you with presenting evidence and countering contradictions in a series of minigames, with a life bar being depleting if you make mistakes. You’ll also be awarded a ranking at the end of each labyrinth, up to SS, if provide all the right answers without any mistakes or lose too much health. That’s no easy task, unless you follow along with our handy guide, which provides all the Mystery Labyrinth answers for Master Detective Archives: Rain Code Chapter 4 – The Imperfect Insider. Scroll on for your cheat sheet…

Warning: There’s really no way to a guide for Master Detective Archives: Rain Code without SPOILERS, so proceed with caution.

Mystery Labyrinth Basics

Don’t worry, there isn’t really any chance of getting lost in the Mystery Labyrinth. They’re just a series of Danganronpa-style minigames, which task you with using logic and providing the right answers to progress. There will be a number of moments in each Mystery Labyrinth where you have to pick the right path or choose a multiple choice answer under a time limit, but the main meat is found in certain reoccurring minigames, specifically Reasoning Deathmatches, Shinigami Puzzles, and the final Deduction Denouement that wraps up each Labyrinth. Here’s how they work:

Reasoning Deathmatches – These are the main challenge you’ll face in Mystery Labyrinths. An opponent will hurl various statements at you, which you’ll literally have to avoid by dodging left, right, jumping, or ducking. When you see a bright red statement, you may be able to counter it by equipping the correct piece of evidence (or “Solution Key”) and slashing it with your sword. Usually if you correctly counter 1 or 2 statements, you’ll defeat your Reasoning Deathmatch opponent and can move on.

Shinigami Puzzles – Here you simply have to select letters rotating around Shinigami’s barrel in order to spell out a key phrase.

God Shinigami Rush – A simple action-based minigame. Shinigami will have to deflect iron balls, break through walls, and leap over obstacles in order to finally break down the culprit’s defenses. You’ll also have to answer a few multiple choice questions under a time limit.

Deduction Denouement – In this final part of the Mystery Labyrinth, you have to place key pieces of evidence in chronological order in the pages of a manga-style comic book in order to accurately recreate the events of the case.

So, with that established, here are your solutions for Master Detective Archives: Rain Code Chapter 4 – The Imperfect Insider:

Reasoning Death Match 1

• Round 1 - Load up the Shoe Print on Ama-Pal Solution Key and slash “There couldn't be an intruder.”

• Round 2 - Repel “You proved that yourself” (no need for a Solution Key).
• Round 3 - Load up the Air Lock Decontamination Device Solution Key and slash “There's no place to hide in the critical lab.”

Quiz Time 1

• "Was there an intruder?" Answer: Yes

Eliminating Possibilities

This case takes a unique twist here, as you come to a branching path with three options. You have to choose each of the options available, then prove why they’re not the correct path in order to move forward.

Path 1 – “Deactivated Security by cutting power”

• Use the Security Power Supply Solution Key.

Path 2 – “Never Entered in the first place”

• Use the Stab Wounds in Back Solution Key.

Path 3 – “Invited in by the doctor”

• Use the Security Log Solution Key.

Path 4 – “Entered and killed via spectral projection”

One more path opens up… and it’s still not the right one! Don’t worry, this is the last false path.

• Use the Ghost Form Traits Solution Key.

Shinigami Puzzle 1

• Solution: AMA-PAL

Quiz Time 2

• “’Who are you?!’ was directed at who?” Answer: No one

Reasoning Death Match 2

• Load up The Doctor's Email Records Solution Key and slash “The doctor was loyal to Amaterasu.”

Quiz Time 3

• "How did the doctor plan to escape Kanai Ward?" Answer: Select the “Swapping Places” door and use The Doctor's Notes Solution Key.

Quiz Time 4

• "The culprit entered the lab before Ama-Pal." Answer: Yes

Spot Selection

• Highlight the first hallway on the diagram.

Quiz Time 5

• "How did the culprit use Ama-Pal?" Answer: Neither

Quiz Time 6

• Question 1 - “Where was the culprit before the crime?” Answer: On top of Ama-Pal’s head
• Question 2 - “How did the culprit use Ama-Pal?” Answer: As transportation
• Question 3 - “What caused Ama-Pal’s malfunction in the air lock?” Answer: Culprit jumped on it
• Question 4 - “Why didn’t the culprit appear on camera?” Answer: They were on top of the head

Reasoning Death Match 3

• Load up Ama-Pal's Design Solution Key and slash “If Ama-Pal's line of sight changed just a bit.”

Reasoning Death Match 4

• Round 1 - Repel “It wouldn't be from behind” (no need for a Solution Key).
• Round 2 - Load up the Information on Doctor Huesca Solution Key and slash “He would've heard someone coming.”

Reasoning Death Match 5

• Load up the Fubuki's Forte Solution Key and slash “No living human can breach it.”

Reasoning Death Match 6

• Load up the Toxic Gas Properties Solution Key and slash “You'd die before reaching Huesca.”

Reasoning Death Match 7

• Round 1 - Repel “The Hitman” (no need for a Solution Key).
• Round 2 – Select the Photo Solution Key (no need for the usual statement dodging here)

Battle with Vivia

This functions similarly to the “Continuous Attack” minigame from Chapter 1. Your opponent throws various potential answers to a question at you. If they’re not the correct answer, just do nothing, and you’ll automatically dodge. Only press the Y button once you see the right answer.

• Question 1 – “Why did Yakou send the death threat?” Answer: To make is seem like the doctor was in danger
• Question 2 – “Why was the death treat sent to the Peacekeepers?” Answer: To use the disguise ability

• Question 3 – “Who caused the blackout?” Answer: Fink the Slaughter Artist

God Shinigami Rush

Wait, there’s no God Shinigami Rush this time around! Directly to the Deduction Denouement!

Deduction Denouement

Here’s the order your should place the images in the Deduction Denouement graphic novel…

1 – Amaterasu Corporation

2 – Peacekeepers

3 – Intercom

4 – Decontamination device

5 – Ama-Pal

6 – Fubuki’s Power

7 – Knife

8 – Fink the Slaughter Artist

9 - Yakou

And that’s the end of that Mystery Labyrinth! Wait, what? It’s not? There’s still more?

Shinigami Puzzle 2

• Solution: EMAIL

Reasoning Death Match 8

• Round 1 - Repel “It’s solved” (no need for a Solution Key).
• Round 2 - Load up the Lab Map Solution Key and slash “There’s nothing connecting Yakou to Anonymous.”
• Round 3 - Load up the Storage Key Solution Key and slash “Anyone can find it.”

Phew! Okay, now you’re done! Chapter 4 is definitely the longest and most convoluted Mystery Dungeon in the game, so take a deep breath.

Master Detective Archives: Rain Code is available now on Nintendo Switch. You can check out guides for other chapters of the game here. Here’s Wccftech’s full review of the game.

Written by Nathan Birch