Beast of Reincarnation Weapons & Keys — All Locations
Every Beast of Reincarnation weapon location (Hunter's Sword, Thunderwave, Purity, Cirrus, Bell, Shark Cutter) plus the Red, Blue, Yellow and Tailwater keys and what they unlock.
Beast of Reincarnation Weapons & Keys — All Locations
Weapons and keys are the two systems that gate your progression in Beast of Reincarnation — weapons define how Emma fights, and keys (plus the strongboxes they open) determine how much of each zone you can actually reach. This guide covers every weapon location we've confirmed, the recommended weapon progression by chapter, and every key including the trio that unlocks the Nushi's Lair.
Here's what you'll learn:
- The weapon tier progression (Cirrus → Thunderwave → Purity)
- Every confirmed weapon and where to get it (Hunter's Sword, Bell Sword, Shark Cutter and more)
- The Red, Blue and Yellow keys and the Nushi's Lair
- The Tailwater Key and what it opens
Weapon Basics
Emma's weapons are the core of her loadout. Each has:
- Attack stat (e.g. Hunter's Sword and Bell Sword both sit around 27 base attack)
- A unique ability — e.g. Hunter's Sword's Envenomed (poisons the blade), Bell Sword's Crushing Blade (increases knockback 1.03x for 5 seconds)
- Acquisition method — weapons are found in the world, won from elites, bought from merchants, or given after story beats
Attack stats are similar across early weapons — the abilities are what differentiate them. A poison weapon against a poison-weak boss outperforms a slightly stronger plain sword every time.
Best Weapon Progression (By Chapter)
The recommended path (per Game8's weapon tier list):
| Phase | Weapon | Why |
|---|---|---|
| Chapter 1 | Cirrus Sword | Best early-game option |
| Chapters 2–3 | Thunderwave Sword | Damage upgrade; earned automatically from a Chapter 2 elite |
| Chapter 4 onward | Purity | Best in slot for the rest of the game |
| Poison-weak bosses (Shido, Nue) | Upgraded Hunter's Sword | Poison buildup shreds them |
Even after you move to Thunderwave/Purity, an upgraded Hunter's Sword is the answer to specific poison-weak bosses (Shido, Nue in later chapters). Don't dismantle or neglect it.
All Confirmed Weapons & Locations
- Hunter's Sword — 27 Attack, Envenomed (poisons blade, +5 poison buildup, 5-second effect). Location: Great Wall Terraces — on top of a pedestal after speaking with the Storyteller golem and listening to its story.
- Bell Sword — 27 Attack, Crushing Blade (Emma's knockback ×1.03, 5s). Location: buy from the Wandering Merchant near Mountain Plaza: Forefront camp (Brad also sells it from following chapters).
- Thunderwave Sword — Location: obtained automatically after defeating the elite enemy during the Chapter 2 main quest.
- Cirrus Sword — Location: early game (Chapter 1 area); the recommended first real weapon.
- Purity — Location: Chapter 4 onward; best-in-slot for the late game.
- Shark Cutter — Location: Fuji Frontier Zone, right next to the Bridge Control Room: Approach campsite.
Additional weapons are catalogued on MapGenie/IGN as they're discovered — the game has 12+ weapons total across all zones.
Upgrading Weapons (Spirit Stones & More)
Finding a weapon is only half the job — upgrading is where the damage comes from:
- Spirit Stones are the core upgrade material, earned from elite enemies and strongbox rewards
- Upgraded weapons scale their attack stat and ability effectiveness — an upgraded Hunter's Sword is the community's go-to for poison-weak bosses even after better base weapons appear
- Memory Chips, Electronic Brains and Generator Devices are rarer upgrade/equipment materials found in later zones — hold onto them rather than selling
Upgrade materials are finite early on. Focus upgrades on your chapter's best weapon (see the progression table) plus one specialist weapon — usually the Hunter's Sword — for poison-weak encounters. Spreading upgrades across everything leaves you with a bag of mediocre swords.
Melee vs Ranged Weapons (Emma & Koo)
Emma's melee weapons pair with Koo's ranged kit:
- Melee (Emma) — the swords above; the playstyle is aggressive and stamina-bound
- Ranged (Koo) — ammo types and Charms do the long-range work; Emma can also use ranged weapons when the situation calls for it
For most of the game you'll be swapping between a melee setup (exploration, small groups) and a ranged setup (kiting elites, opening boss fights). The strongbox rewards that give you ammo and ranged materials are worth prioritizing for exactly this reason.
The Three Keys: Red, Blue & Yellow
The Three Keys: Red, Blue & Yellow
You need three keys — Red, Blue and Yellow — to gain access to the Nushi's Lair in Chapter 1 (Ogouchi Buffer Zone). All three are found within the Ogouchi Buffer Zone:
- Red Key — obtained first; received during the 'Path to the Sealed Lair' objective (it also opens the door to the Abandoned Village strongbox)
- Blue Key — found in the same zone via the Cliffside Village route
- Yellow Key — completes the trio, near the Disposal Site area
The three keys are not handed to you on the critical path — you must explore. Missing one means backtracking through the game's largest early zone. Check every village, tent and ruin before moving on.
The Tailwater Key
The Tailwater Key is a fourth key, separate from the trio. It's obtained during the later 'Head to Subcity' quest line and unlocks specific doors/strongboxes tied to that quest — it is not required for the Nushi's Lair.
Keys vs Strongboxes: A Quick Reference
| Item | Type | Unlocks |
|---|---|---|
| Red Key | Key | Sealed Lair door + Abandoned Village strongbox |
| Blue Key | Key | Key-locked strongboxes in the zone |
| Yellow Key | Key | Nushi's Lair (with Red + Blue) |
| Tailwater Key | Key | Subcity quest-line doors |
| 04180 / 08110 | Codes | Disposal Site / Cliffside Village strongboxes |
FAQ
What is the best weapon in Beast of Reincarnation? Cirrus Sword for Chapter 1, Thunderwave Sword for Chapters 2–3, and Purity from Chapter 4 onward. Keep an upgraded Hunter's Sword for poison-weak bosses like Shido and Nue.
Where is the Hunter's Sword in Beast of Reincarnation? Great Wall Terraces — on a pedestal after listening to the Storyteller golem's story. It has Envenomed (poison buildup +5, 5s).
How many keys are in Beast of Reincarnation? Four: the Red, Blue and Yellow keys (the Nushi's Lair trio) plus the later Tailwater Key.
Where is the Blue Key in Beast of Reincarnation? In the Ogouchi Buffer Zone, via the Cliffside Village route.
What unlocks the Nushi's Lair in Beast of Reincarnation? All three keys — Red, Blue and Yellow — together open the Nushi's Lair that progresses Chapter 1.