The katana remains the core weapon
Musashi's main weapon is one katana rather than a conventional inventory of constantly swapped swords. One-handed attacks are faster, while two-handed attacks are slower and stronger according to the collected gameplay material. That design puts emphasis on learning timing, stance pressure, parry, deflect, and Issen. Progress comes from mastering the blade instead of replacing it whenever a larger number appears.
This distinction matters when reading cosmetic product descriptions. A different sword appearance can change how the katana looks without creating a separate combat class. The official product material describes sword appearances, outfits, haori coats, and Oni Gauntlet skins as cosmetic. They should not be listed as new performance weapons.
Oni Armaments supplement the blade
Oni Armaments are supernatural combat tools powered by blue souls. They complement the katana instead of replacing its central role. The collected preview names three roles: the fast dual-wielding Two Celestials, the heavy Earthshakers, and the wide-range Wind Whipper. Each is presented around a different encounter problem.
Two Celestials can generate yellow souls for recovery according to the preview material. Earthshakers are described as effective against shields and enemy stamina. Wind Whipper can work across a broader area and interact with projectiles or nearby flames. These are role summaries, not a verified final upgrade or location list.
Manage blue souls as ammunition
Blue souls charge Oni Armament skills, and using those skills drains the gauge. Spending the entire reserve on a minor group can leave no supernatural option for the next boss or shielded enemy. Saving every charge forever also wastes a tool designed to solve difficult situations. Connect the use to a clear encounter need.
Soul absorption requires a safe window. Yellow souls restore health, red souls support upgrades, and blue souls feed the Armament gauge, while enemies or bosses may consume unattended souls. Create space, finish a threat, or use a stagger before absorbing. Resource management is part of the weapon system because the special weapon cannot be separated from how its energy is collected.
Choose the Armament by combat problem
Use Earthshakers when a shield or stamina bar is preventing normal progress. Use a wider-range option when a group makes single-target pressure unsafe. A recovery-linked option becomes more valuable when yellow souls can stabilize the encounter. The collected material supports these broad functions without proving that they are the only valid uses.
The katana still creates many of the openings that make an Armament effective. Parry and deflect can break stamina, Issen can generate souls, and normal attacks can finish a target that does not justify spending blue energy. Treat the supernatural tool as a deliberate conversion of a limited resource. It should solve the highest-value problem in the current room.
Keep the bow in its proper role
Musashi also carries a bow in the collected gameplay and beginner guidance. It can interrupt some dangerous boss actions when remaining at close range would be unsafe. That makes it a useful ranged option without turning the game into a bow-centered weapon system. The evidence does not establish that every boss move can be canceled this way.
Use distance to avoid forcing a bad sword exchange. If a dangerous action has a readable ranged interruption, the bow can preserve health and reset the rhythm. If it does not, return to the appropriate parry, deflect, dodge, or movement answer. A weapon guide should describe the bow as one tactical option, not as a universal shortcut.
Use environmental objects deliberately
Tables, boards, carts, walls, and explosive hazards appear as improvised combat tools in the collected material. They can create space, interrupt an enemy, or reduce pressure from a group. These objects are part of the room rather than permanent inventory items. Scan the environment before the encounter removes your freedom to position.
An environmental hit can make the next katana exchange safer or preserve blue souls for a harder target. It may also separate one enemy from a crowd so normal timing becomes readable. The exact usable object depends on the location, so this page does not invent a fixed list for every stage. The reliable habit is to notice what the current arena provides.
Separate charms from weapon appearances
Charms can strengthen Musashi's abilities according to the official product context. Sword appearances, outfits, and Gauntlet skins are cosmetic and do not change battle performance. This difference is important when comparing Standard, Deluxe, and Premium Deluxe packages. A package with more visual items is not automatically a stronger weapon bundle.
The Deluxe material names charms such as Oni Lady, Little Dancer, and Mentor, along with several appearances. Their exact effects should come from the current in-game description or official product detail rather than guesswork. A buyer deciding on an edition should compare gameplay-affecting charms separately from cosmetic presentation. Mixing the categories exaggerates what the extra price buys.
Build a simple combat load plan
Enter a new area with the katana as the default solution and check the blue-soul gauge before a major encounter. Identify whether the next problem is a shield, a crowd, a dangerous projectile situation, or a need for recovery. Use the Armament whose verified role fits that problem, then return to katana timing while rebuilding resources. Keep the bow and environment available when close-range pressure is the wrong answer.
This approach avoids constant menu thinking in a system centered on one blade. It also respects the source evidence, which emphasizes katana mastery instead of a large weapon-swapping catalog. Upgrades and unlock timing may change the available choices during a real playthrough. The decision framework remains useful even when the final inventory expands.
Do not publish an invented complete list
One weapons-linked video in the local capture was blocked, and missing access cannot prove that no other weapon or Armament exists. The available sources support the core katana, the three named Armament roles, bow use, environmental attacks, charms, and cosmetic appearances. They do not support a complete location table or every unlock requirement. Those gaps must remain explicit.
Verify final names, unlock timing, upgrade effects, and boss-specific interactions in the released build before labeling a list complete. If a retailer calls a sword appearance a weapon, explain whether it changes performance rather than copying the marketing category uncritically. The most accurate current description is katana mastery supported by limited Oni-powered tools. Anything broader needs new evidence.