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Scarlet Nexus

Scarlet Nexus

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Scarlet Nexus is a sci-fi action RPG where you play as either Yuito Sumeragi or Kasane Randall, members of the OSF (Other Suppression Force). You'll use powerful psionic abilities, like telekinesis and the Struggle Arms System (SAS), to battle the deranged mutants that plague humanity. The game features intertwined storylines, deep combat customization, and a visually striking world to explore.

This guide will help you master Scarlet Nexus, covering everything from advanced combat techniques and the Brain Map skill tree to finding all the collectibles and achieving the best endings. We'll break down challenging boss fights, explain the intricacies of the SAS system, and ensure you don't miss any crucial items or lore as you navigate the dual narratives.

Walkthrough: Yuito Sumeragi

Start Yuito Sumeragi's story in Scarlet Nexus. Learn about difficulty settings and early game choices.

Walkthrough
  1. 1
    After completing the legal and settings menus, you will be prompted to select one of three difficulty settings. These can be changed later, so do not worry about this choice too much.
  2. 2
    Start a new game.
  3. 3
    You will then be asked to select one of the two protagonist stories. This walkthrough will focus on Yuito Sumeragi.
  4. 4
    For the early parts of this walkthrough, locations of items and data spots will be listed. This will stop at a certain point as most of the game is linear and does not require a guide for item discovery.
  5. 5
    This walkthrough will provide helpful advice for dealing with bosses. For general combat or other information, please refer to other sections.
Tips
  • The choice of protagonist (Yuito Sumeragi or the other) offers different story experiences.
  • Difficulty settings can be adjusted at any time.

Important: Differences between Protagonists and reasons to play both

Discover why playing as both Yuito and Kasane in Scarlet Nexus is essential for the complete story, understanding unique perspectives, party members, and combat styles.

Alright, so you're diving into Scarlet Nexus, awesome! One of the coolest things about this game is that it actually has two main characters, Yuito and Kasane. When you pick one, you're seeing the story through their eyes, and let me tell you, it's a pretty different experience depending on who you choose.

Think of it like this: you'll follow their individual journeys, and while they're both part of the same overarching conflict, they'll be doing different things, learning different stuff, and meeting different people. Each protagonist has their own unique set of allies who join them on their quest, though you'll get to have bonding episodes with everyone, including the other protagonist, no matter who you're playing as.

Seriously, almost every event you experience will be unique to your chosen character, except for those special bonding moments you can have with each other. Even though they both wield psychic powers, the way they fight and the abilities they use feel distinct enough to make the gameplay itself feel fresh.

You'll also be exploring different areas and facing completely different bosses depending on no matter if you're playing as Yuito or Kasane. So, if you really want to get the full picture and understand everything that's going on, playing through both story routes is definitely the way to go. Each route has its own satisfying conclusion, so you can decide which one you want to tackle first.

Pro-tip: After you finish one story, you can jump into the other on New Game Plus (NG+). Your character's level and all your items will carry over, making the second playthrough smoother. And here's a neat trick: once you've cleared both stories on the same save file, you can actually switch between Yuito and Kasane during the post-game, letting you revisit any part of the story whenever you want!

Combat Mechanics Explanation

Learn the Scarlet Nexus combat system, including psychokinesis, SAS abilities, Brain Crush, and character differences between Yuito and Kasane.

Gameplay centers on landing weapon attacks and following up with a psychokinesis (PK) attack, repeating this cycle. As you upgrade your Brain map, you can increase base stats, add to existing combos, and unlock new moves. Yuito tends to learn skills that expand his moveset and melee abilities sooner due to their proximity on the Brain map and lower Brain Point (BP) cost. These include various air combos, increased melee attack counts, and more consecutive rush attacks. You can also learn and upgrade a charged version of the Area of Effect (AOE) melee skill. Be mindful of your surroundings when using PK, as larger objects deal more damage. Some special objects trigger Quick Time Events (QTEs) when used, offering varied effects that can turn the tide of battle. Enemies whose crush gauges are depleted to 0 can be Brain crushed for an instant kill. If multiple enemies have depleted crush gauges within your line of sight, you can Brain crush them simultaneously.

As you progress, you will acquire new combat tools: SAS (Supportive Arts System) abilities borrowed from your party members, which allow Yuito to use their powers for a limited time. As your bond with allies grows (based on Bond level, not Bond episode number), SAS abilities gain improvements. Beyond unique enhancements, common new abilities include increased SAS active time or faster recovery. Guardian Vision nullifies damage when you are attacked by showing an ally's vision. Combo Visions allow you to summon ally visions for attacks, consuming part of the SAS gauge but usable with melee combos and other Combo Visions. Assault Visions are similar but more powerful, do not consume the SAS gauge, and occur randomly during attacks.

From the Brain map, you can gain boons for SAS, such as restoring the SAS gauge when active after a Brain crush. The most significant boons allow using multiple SAS abilities at once: one skill unlocks up to 2, and another (requiring the first) increases this to 4, enabling powerful combinations. Note that Pyrokinesis and Electrokinesis cannot be used simultaneously.

Yuito and Kasane Combat Differences

Yuito wields a sword, with many close-range attacks and combos. His Brain map prioritizes melee skills, learning them faster than PK or aerial skills. He also learns Multi SAS skills later. Yuito's attacks heavily focus on damaging the crush gauge. His core combos are simple, featuring a standard attack combo and a chargeable AOE melee skill that recharges his PK gauge, capable of immense damage when fully upgraded.

Kasane, conversely, is a ranged fighter using numerous small knives for distant attacks. While she can recharge her PK gauge, her method lacks an AOE. Her attacks are fast but generally less powerful, dealing damage quickly. Kasane's Brain map allows her to learn evasion and movement skills, improve aerial attacks, and learn PK and SAS skills sooner than Yuito. She also has a variety of aerial attacks with PK follow-ups. Kasane starts strong and learns powerful skills rapidly but eventually plateaus, requiring a focus on PK and SAS tactics to compensate for her weapon attacks' lower damage.

Hanabi (Pyrokinesis)

Hanabi's SAS ability applies a fire effect to your weapon and thrown PK objects, which can burn enemies, especially those covered in oil. Her ability also increases melee AOE. Later levels add an aerial attack to main melee combos and a flamethrower after the 4th melee attack (if unlocked). She also allows you to completely negate burn effects on yourself.

Tsugumi (Clairvoyance)

Tsugumi's SAS ability allows you to see cloaked enemies or through thick mists. It also makes perfect dodging easier and enables Read attacks (immediate attacks after perfect dodging). Higher bond levels unlock armor-destroying Read attacks, PK Read attacks, and significantly increase the Crush gauge depletion rate while active.

Tips
  • Focus on depleting enemy crush gauges to enable Brain Crush for instant kills.
  • Experiment with combining different SAS abilities for maximum effectiveness.
  • Be aware of environmental objects for powerful PK attacks and QTEs.
  • Yuito excels at melee and crush gauge damage, while Kasane is a ranged specialist.
  • Deploy Hanabi's Pyrokinesis to inflict burn status effects.
  • Exploit Tsugumi's Clairvoyance for enhanced evasion and armor penetration.

Yuito Sumeragi: Phase 2

Scarlet Nexus Yuito Sumeragi Phase 2 walkthrough covering Suou City, Kikuchiba Simulation, and Abandoned Subway.

Walkthrough
  1. 1
    After regaining control in the Sumeragi Tomb, leave the area.
  2. 2
    Accept a quest near the western walkway near headquarters.
  3. 3
    Enter headquarters for scenes, then proceed into the Kikuchiba Simulation dungeon with Kagero and Shinden.
  4. 4
    Follow the linear path, defeating enemies. Shinden's electricity is effective against water-based attacks.
  5. 5
    Reach a flag, defeat enemies, and open a path forward.
  6. 6
    Go up stairs to an open space, defeat enemies, and beware of flyers that shoot electricity.
  7. 7
    Take the northern path down stairs to a flag, collect it, and return upstairs.
  8. 8
    Go up the western staircase.
  9. 9
    Upon reaching the save point and shop on the 3rd floor, stock up on Light Jelly.
  10. 10
    Prepare to fight Kasane alone. She uses melee attacks and psychokinesis to throw objects. Intercepting thrown objects is difficult and still deals damage.
  11. 11
    Focus on avoiding Kasane's attacks and finding opportunities to use special object attacks to damage her crush gauge.
  12. 12
    Be ready for a button mash QTE when Kasane counters your special object attacks.
  13. 13
    Depleting Kasane's crush gauge allows for a Brain Crush, but it is not an instant kill. Continue fighting, avoiding direct hits from thrown objects, and healing.
  14. 14
    After the fight, scenes play, and you will receive a power enhance Mk1.
  15. 15
    Return to the Sumeragi tomb grounds. After a monologue, your next mission begins.
  16. 16
    After scenes in the Abandoned Subway: Suou Line 9, you will unlock Brain Drive and the Brain Map will expand with related skills. Your team will be Kagero and Tsugumi.
  17. 17
    Locate the nearby shop and item/data spots. Proceed down the linear path.
  18. 18
    Use Tsugumi's SAS (Struggle Arms System) to see invisible enemies.
  19. 19
    Advance, defeating enemies. You will receive a tutorial on train special object attacks.
  20. 20
    In an open space, defeat initial enemies, then a strong enemy (similar to the tutorial boss) will appear.
  21. 21
    This Other goes underground and uses a long-range laser. Use Tsugumi's SAS to avoid hits and counter. Attack its side arms, which are weakpoints. Use nearby special objects for heavy crush damage.
  22. 22
    Defeat enemies in the next section to proceed.
  23. 23
    In the Inside Abandoned Line area, defeat a group of enemies, then take the northeast path to defeat another group and a mini-boss to pick up a gift item.
  24. 24
    Backtrack and take the other path. Defeat Others until you reach a save point.
  25. 25
    Proceed east, ignoring inaccessible rooms.
  26. 26
    Go down stairs, and in the next room, go invisible and use the train to instantly defeat enemies.
  27. 27
    Enter the northeastern room and defeat a Sabbat to get 2 items.
  28. 28
    Go in the opposite direction, fight through enemies, and reach the next save point. Continue for a scene.
  29. 29
    Defeat enemies (three vases and a burrowing Other).
  30. 30
    Enter the eastern room and defeat 2 Others for another gift item.
  31. 31
    Continue on the linear path.
  32. 32
    In the next large open area, pick up a medium jelly (needed for a quest) and find a Data spot.
  33. 33
    Proceed to the next area.
  34. 34
    In Osukuni Station, go through the western part with escalators to find 2 items: one hand All: Light Jelly and one hand Medium Jelly. You can complete the quest from the main menu quest section immediately.
  35. 35
    Go up the opposite escalators for a scene.
  36. 36
    Defeat a few Others with Tsugumi as your ally.
  37. 37
    Prepare for a boss battle against Other Naomi, who has 2 phases.
  38. 38
    Phase 1: Other Naomi will only use a small yell shockwave. Use Gemma's SAS (Struggle Arms System) to close in and land combos and chains with psychokinesis.
  39. 39
    Phase 2 (after 25% damage): Other Naomi gains a crush gauge that does not deplete normally. Avoid attacks until she uses a blinding attack. Then, use Tsugumi's SAS and attack her glowing red weak point to damage her crush gauge. Use psychokinesis and special object attacks to down and damage her crush gauge.
  40. 40
    Alternatively, use melee and psychokinesis with Gemma's SAS to deal minimal damage while waiting for the smoke screen. This is useful as Other Naomi regenerates health slowly.
  41. 41
    Use Brain Crush to deal significant damage. This must be done at least twice to end the battle.
  42. 42
    After scenes, you will be in a party with Gemma. Follow the linear path until another scene plays.
  43. 43
    Continue to a save point/shop.
Tips
  • Shinden's electricity is very effective against water-related enemies in the Kikuchiba Simulation.
  • Beware of flyers in the Kikuchiba Simulation; they shoot electricity and can shock you.
  • Stock up on Light Jelly before the fight with Kasane.
  • Intercepting Kasane's thrown objects is difficult and still deals damage.
  • When fighting Other Naomi, use Gemma's SAS in Phase 1 to safely land combos.
  • In Phase 2 of the Other Naomi fight, wait for her blinding attack before using Tsugumi's SAS to expose her weak point.
  • Other Naomi regenerates a small amount of health throughout the fight.
  • You will need to perform Brain Crush at least twice on Other Naomi to defeat her.
  • Look for items behind fences in the next area after the save point/shop.

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