Onimusha Way of the Sword boss roster includes Sasaki Ganryu, the Genma siblings Ifuu and Burai, and Genma Musashi. Sasaki Ganryu appears in the demo as the signature boss. The expanded demo adds another "fearsome boss." Hidden bosses, exact boss HP values, damage scaling per preset, and exact Issen timing frames per boss are not announced as of 2026-09-02.

Onimusha Way of the Sword Boss Roster Overview

Onimusha: Way of the Sword features a confirmed Genma boss lineup of four named encounters: Sasaki Ganryu, the Genma siblings Ifuu and Burai, and Genma Musashi. Sasaki Ganryu appears both as Musashi's direct rival in the story and as the signature boss in the demo. The expanded demo adds another "fearsome boss" with a separate identity. The confirmed roster is four named encounters at launch. Hidden bosses, exact boss HP values per preset, and damage scaling per preset are not announced as of 2026-09-02.

Confirmed boss roster

BossRoleStory contextSource tier
Sasaki GanryuRival, demo signature bossMusashi's direct rivalConfirmed by Capcom, demo, launch reviews
IfuuGenma siblingDual encounter with BuraiConfirmed by Capcom and launch reviews
BuraiGenma siblingDual encounter with IfuuConfirmed by Capcom and launch reviews
Genma MusashiDemon MusashiTied to Musashi's Oni Awakening arcConfirmed by Capcom and launch reviews

Sasaki Ganryu — Musashi's Rival

Sasaki Ganryu is Musashi's direct rival and the signature boss of the demo. The fight layers three systems at once: regular sword trading, Oni Gauntlet parry windows on Ganryu's named attacks, and Issen counter timing when Ganryu opens up after a heavy swing. Ganryu also appears as a recurring rival in the full story, not just a one-off boss encounter. The [Issen guide](/issen/) covers the timing rhythm that the Ganryu fight teaches.

Ifuu and Burai — The Genma Siblings

Ifuu and Burai are confirmed Genma siblings and are positioned as a dual boss encounter. Dual encounters layer two enemy attack patterns at once, which forces Musashi to manage two Oni Gauntlet windows in parallel. The Issen timing rhythm from the Sasaki Ganryu fight carries over, but the dual-encounter pacing raises the pressure on chain-Issens across enemies.

Genma Musashi — Demon Musashi

Genma Musashi is the late-game boss tied to Musashi's Oni Awakening arc. The encounter is positioned as the narrative mirror of Musashi's own transformation, since Genma Musashi represents the Oni-corrupted version of Musashi's sword style. Exact HP values and damage scaling are not announced as of 2026-09-02; the encounter is the narrative capstone rather than a separate difficulty tier.

Expanded Demo "Fearsome Boss"

The expanded demo adds another "fearsome boss" to the rotation. The exact identity of the expanded demo boss is not announced as of 2026-09-02. The phrasing "fearsome boss" comes from Capcom's own framing and signals that the new boss is positioned at a similar or higher difficulty tier to Ganryu, not a routine mid-level enemy. Players who want the second Issen timing pattern should run the expanded demo and treat the new boss as a chain-Issen drill.

Hidden Bosses and Unannounced Encounters

Hidden bosses, exact boss HP values, damage scaling per preset, and exact Issen frame windows per boss are not announced as of 2026-09-02. The confirmed roster is the four named encounters above; any post-launch DLC boss, secret encounter, or hidden boss should be treated as unknown until Capcom confirms it. The [combat mechanics page](/combat/) covers the combat system at a foundation level.

FAQ

How many bosses does Onimusha Way of the Sword have?

The confirmed Onimusha Way of the Sword boss roster counts Sasaki Ganryu, the Genma siblings Ifuu and Burai, Genma Musashi, and an expanded-demo boss. Any total number of bosses beyond that roster is not announced as of 2026-09-02.

Who is the first boss in Onimusha Way of the Sword?

Sasaki Ganryu is the first boss players encounter, as both the Kiyomizu-dera Temple demo fight and the early-game rival duel. He functions as the first Issen-timing training encounter.

Is there a secret boss in the Onimusha Way of the Sword demo?

The expanded demo adds another "fearsome boss" beyond the Sasaki Ganryu duel, but the boss has not been named publicly and no secret-fight criteria have been published as of 2026-09-02.

Is there a secret boss in the Onimusha Way of the Sword demo?

The expanded demo adds another "fearsome boss" beyond the Sasaki Ganryu duel, but the boss has not been named publicly and no secret-fight criteria have been published as of 2026-09-02.

Onimusha Way of the Sword Combat — Oni Gauntlet and IssenOnimusha: Way of the Sword (Capcom, Steam AppID 2638890) is built around three combat layers: sword play, the Oni Gauntlet risk-reward parry system, and the Issen named counter. Musashi's Oni Awakening transformation adds a fourth tempo layer for tougher fights.Onimusha Way of the Sword Issen Guide — Timing and ChainsOnimusha: Way of the Sword (Capcom, Steam AppID 2638890) Issen is a named counter-attack that follows a clean Oni Gauntlet parry. Issen timing windows are preset-dependent, and chain-Issen across multiple enemies is the natural mastery loop.Onimusha Way of the Sword Demo — Content, Boss, and RewardsOnimusha: Way of the Sword (Capcom, Steam AppID 2638890) has a free demo on Steam, PlayStation 5, Xbox, and the Epic Games Store ahead of its September 3, 2026 release. The demo covers Kiyomizu-dera Temple and a Sasaki Ganryu boss fight, and retaining the demo save grants the Kubi Akari charm in the full game.Onimusha Way of the Sword Characters — Musashi and the CastOnimusha: Way of the Sword (Capcom, Steam AppID 2638890) stars Miyamoto Musashi as the fixed protagonist. Sasaki Ganryu is the direct rival, the siblings Ifuu and Burai are the Genma antagonists, and Genma Musashi is tied to Musashi's Oni Awakening arc.Onimusha Way of the Sword — Launch HubLaunch-week US English hub for Capcom's Onimusha: Way of the Sword (Steam AppID 2638890): September 3, 2026 release, demo on Steam / PS5 / Xbox / Epic, three editions, Oni Gauntlet and Issen combat, Genma boss lineup, and Musashi Miyamoto protagonist.