Oni Gauntlet Complete Guide — Unlock Every Power in Onimusha: Way of the Sword

The Oni Gauntlet is the defining mechanic of Onimusha: Way of the Sword, transforming Miyamoto Musashi from a mortal swordsman into a demon-slaying force capable of absorbing enemy souls, channeling supernatural abilities, and wielding devastating Oni Armaments against the Genma hordes terrorizing Edo-era Kyoto.

How the Oni Gauntlet Works

Early in the story, Musashi is ambushed by Genma and left for dead. He survives only because the Oni Gauntlet — a sentient, battle-scarred piece of demonic ironwork — bonds to his arm uninvited. From that moment on, the gauntlet becomes the centerpiece of every combat encounter. Its primary function is soul absorption: when enemies fall, they release colored soul orbs that linger briefly in the environment, and pressing L2 activates the gauntlet to vacuum them in. This is not a passive process — Musashi is defenseless during absorption, making the decision of when to pull in souls a genuine tactical choice in the heat of battle.

The gauntlet also houses the Lady Oni, a female Oni spirit who speaks to Musashi throughout his journey. She serves as an in-world guide, commenting on the battlefield, explaining new mechanics, and flagging threats before they become lethal. Pay attention to her cues — she is the one who introduces critical systems like Oni Vision and the Armaments. Musashi is not the only gauntlet bearer in the story, either. His obsessive rival Sasaki Ganryu and the elder swordsman Ono no Takamura both carry their own gauntlets, and observing how they wield theirs can teach you advanced techniques while warning you about the corrupting pull of demon power.

Soul Absorption — Three Colors, Three Purposes

The soul system is the economic engine that drives all of your progression, healing, and special abilities. Every defeated Genma drops soul orbs in one of three colors, and treating them interchangeably is a costly mistake. Yellow souls restore Musashi's health, making them essential for surviving drawn-out boss encounters without burning through consumables. Red souls function as the game's upgrade currency — you spend them to enhance equipment, purchase new skills, and unlock nodes on the ability tree. Blue souls fill the Oni Power gauge, which is required to activate the powerful Oni Armaments.

Managing the soul economy becomes even more intense during boss fights. Certain bosses, such as the giant man-eating Genma Daidara, can absorb lingering souls before you do. If Daidara devours enough souls, its body powers up significantly, turning a challenging fight into a near-impossible one. This transforms soul absorption from a post-combat cleanup task into a frantic mid-fight tug-of-war. Prioritizing which souls to grab — and when to risk the vulnerability window to grab them — is a skill that separates competent players from masters.

A key early upgrade allows Musashi to absorb souls while moving, which dramatically changes multi-enemy encounters. Before obtaining this upgrade, you must carefully clear threats before standing still to absorb. Afterward, you can weave absorption into your combat flow. Investing red souls into absorption speed and range upgrades should be an early priority for any build.

Oni Abilities — Vision, Strength, and Agility

As Musashi progresses through the story, the gauntlet gradually awakens three hidden Oni abilities that serve both combat and exploration. Oni Vision lets you perceive what human eyes cannot — it reveals hidden Genma obstacles, concealed enemies, and threads of Malice weaving through the environment. This ability is essential for solving environmental puzzles and uncovering secret paths throughout Kyoto. Activating it regularly in new areas ensures you never miss a hidden threat or a tucked-away shortcut.

Oni Strength grants Musashi inhuman arm power, enabling devastating strikes that break through enemy defenses with ease. Beyond combat, it also lets you clear physical obstacles that block exploration paths. Oni Agility provides explosive leg power, unlocking acrobatic feats such as wall-running that open up entirely new routes in both combat arenas and traversal sections. Together, these three abilities ensure the gauntlet remains relevant far beyond its soul-absorption role, turning previously inaccessible areas into new opportunities as each ability unlocks.

Oni Armaments — Your Elemental Arsenal

Oni Armaments are powerful special weapons fueled by the blue souls you collect during combat. Each Armament fills a distinct tactical niche, and switching between them based on the encounter is key to efficient play. The Earthshakers completely bypass enemy blocks, making them the go-to choice against shielded Genma who would otherwise deflect your katana strikes. The Celestials force every enemy they hit to drop yellow healing souls, providing critical sustain during grueling boss fights or endurance encounters where consumables run thin.

The Wind Weeper is purpose-built for crowd control, excelling when you are swarmed by large groups of lesser Genma. Meanwhile, the Oni Bow gives Musashi a ranged option with unlimited arrows — holding the draw charges the shot for extra damage, and it doubles as a puzzle-solving tool for hitting environmental triggers or crushing boulders onto enemies below. Because blue souls are the fuel for all of these tools, building and maintaining your Oni Power gauge through aggressive combat is essential. The Blaze Gauge system — activated by landing successive parries to engulf your sword in blue flames — is especially synergistic here, as the blazing state generates bonus blue souls on every hit.

When choosing which Armament to prioritize upgrades for, consider your playstyle. Aggressive players who parry frequently will have a steady supply of blue souls and can lean into Earthshakers for maximum damage output. Players who struggle with tougher encounters should invest in the Celestials early, as the passive healing they provide can carry you through fights that would otherwise require consumable management. The Wind Weeper is a strong investment once standard encounters start throwing mixed groups of enemies at you in the game's back half.

Optimal Upgrade Priorities and Build Tips

Red souls are your most precious resource, so spending them wisely early on has a cascading effect on your entire playthrough. The single most impactful early upgrade is the ability to absorb souls while moving — it eliminates the dangerous vulnerability window and lets you maintain combat flow during multi-enemy fights. After that, increase your absorption speed and range so you can collect souls before bosses like Daidara steal them. These quality-of-life upgrades pay dividends in every single encounter going forward.

For skill tree progression, prioritize defensive technique upgrades before offensive ones. The game's difficulty ramps steeply in the back half, and having polished parry and deflect capabilities — especially the Blaze Gauge buildup speed — will serve you far better than raw damage increases. Once your defensive foundation is solid, branch into your preferred Oni Armament upgrades based on whether you favor sustained healing (Celestials), shield-breaking burst (Earthshakers), or crowd management (Wind Weeper).

If you find yourself under-leveled for a tough boss, use the Rokudo-chinnoji Temple in the hub area. Ringing the temple bell opens a separate dimension where you can rematch previously defeated bosses for additional red souls and experience. This is the most efficient farming method in the game and avoids the need to grind repetitive standard encounters. Combine this with Break Issen kills — which trigger automatically once an enemy's stamina gauge is fully depleted through sustained pressure — for a reliable, lower-risk path to bonus soul drops without requiring frame-perfect timing.