There are 7 Oni Armaments available in Onimusha: Way of the Sword. They are powerful armaments available in various parts of the game; some of them can be found within chests, while the other armaments will be provided to the player during the course of the storyline. It would be beneficial for you to find them all. Below, we’ll tell you where to find every Oni Armament and how to get them.
All Oni Armament Locations (Oni Armoury Trophy)
Onimusha: Way of the Sword has many different Oni Armaments that you need to find. Some are located inside chests, and some are awarded to you automatically during the game. After collecting all Oni Armaments, you will earn the Oni Armoury trophy/achievement.
The Two Celestials


The Two Celestials can be acquired at Kiyomizu-dera Temple. As you explore, you will find the second Oni Gate, which is locked by the Thread Genma. To unlock the Oni Gate, destroy the second Thread Genma. After which, the treasure chest containing the item will fall from the threads.
The Two Celestials are a pair of short blades. Their special ability lets you unleash a rapid flurry of attacks, causing enemies to drop Yellow Souls.
Oni Bow


The Oni Bow can be found in a chest which is located on the main pathway in the Oni Refuge. You don’t need to worry about missing this one, as it is part of the story and is required to progress. Just take the main pathway, and you will find it. It lets you attack enemies from a distance and interact with certain mechanisms that require a bow.
Wind-Whipper

Wind-Whipper will be automatically given to you during the “The Oni’s Apprentice” quest. A chest will be revealed to you; open it to get the Wind-Whipper.
Wind Whiplash is a dual-blade naginata which can be spun over your head to form a devastating whirlwind. It affects several opponents surrounding you, knocking them away from you and blocking any ranged attack coming from inside the whirlwind. This technique becomes a fire whirlwind if it comes in contact with a flame.
Earth-Shakers


The Earth Shakers can be located in the Underground Laboratory. Head for the Underground Floor 4, then go ahead till you come across the fan puzzle. Solve it and enter the room where you will see a chest containing the Earth Shakers.
Earth Shakers consist of two very strong hammers capable of ripping through space. This special move is a charged hammer blow that causes serious damage to the stamina of your opponent. You can also hold the attack to charge it up and unleash an even stronger strike.
Firebird Flute


Firebird Flute is located inside the chest near the Gojo Street – East Spirit Shrine. Visit the place where the Rift was located during the “Shadows Fall” mission, and you will find the chest. After you open it, you will get the Firebird Flute. The Firebird Flute lets Musashi summon fiery birds that attack enemies and set them on fire.
Flashing Void


Flashing Void is located in the Castle Courtyard on Mount Oe. When searching for the item, find the cave, which can be entered by sliding into it. Go to the cave, and you will see a chest in it; this chest contains the Flashing Void.
Still Water


Still Water can be located in the Swamp of Arashiyama. Move towards the northeastern part of the map and check out that place. There will be a chest with Still Water.
