How Many Bosses Will Onimusha: Way of the Sword Have?

Where the number 18 comes from

PowerPyx compiled a boss guide that follows the game's own Boss Rematch order and lists 18 main boss battles, alongside Carnage difficulty notes. Using the in-game menu as the index is the most defensible way to count.

It is a third-party count. Capcom's official site introduces the Genma and several key characters but never states a total, so nobody should present 18 as an official figure.

Fights versus unique bosses

Reviews note that boss encounters are a highlight but also flag repetition, including opponents that return. That is why the honest phrasing is "18 main boss fights" rather than "18 unique bosses".

If you are asking because you want to know how much variety to expect, the answer is that the fight count overstates the roster. Expect strong set-piece duels punctuated by returning or upgraded opponents.

The Boss Rematch menu

The game includes a Boss Rematch feature, which is what makes a reliable count possible at all — the menu enumerates the encounters for you. It also functions as post-game content for replaying difficult fights.

Some trophy or achievement requirements are connected to boss rematches, which is worth knowing if you are planning a completion run.

Bosses shown before launch

The demo ends with a duel against Ganryu, and a PlayStation Blog article about the demo update introduced a new area and the boss Daidara. Those are officially confirmed encounters you can read about without wider campaign spoilers.

Official overview trailers from Capcom and IGN show additional boss footage. Do not count silhouettes in a trailer as evidence of a roster size — promotional footage reuses and re-cuts the same encounters.

What bosses demand of you

Boss design leans on the same defensive core as regular combat: read the tell, deflect or parry, then answer with an Issen counter. Trading blows is the reliable way to lose.

Because Carnage unlocks after a first clear, the same fights come back harder later. Learning tells properly on your first run pays off directly in a New Game Plus or completion run.

Avoiding spoilers

A full boss list is inherently a spoiler list — it reveals characters, story beats and the shape of the campaign. If you are still on your first playthrough, the number above is usually all you need.

When you do want the full sequence, the PowerPyx guide has it in Boss Rematch order. Keep in mind that any published list can miss optional or conditional encounters until more players verify it.

Why an official number does not exist

Capcom's site introduces the Genma and several important characters but never publishes a boss total, which is normal for a story-driven action game where the count is itself a spoiler.

Marketing material makes the problem worse rather than better. Trailers re-cut the same encounters, so counting distinct silhouettes across videos produces a number that means nothing.

That is why an in-game menu is the right index. The Boss Rematch list is the game telling you what it considers a boss fight.

What the count means for your playthrough

Eighteen main boss fights across a campaign of roughly 20 to 33 hours means a major encounter appears regularly rather than in occasional bursts. Reviews describe those set pieces as the strongest part of the game.

Because some opponents return in reworked forms, a fight you struggled with early can reappear when you are better equipped to read it. That structure rewards learning tells over memorising a single strategy.

Boss Rematch also means no fight is a one-time opportunity. If an encounter went badly, you can revisit it after the credits.

Preparing for boss fights

The defensive core carries every encounter: deflect and parry are distinct actions, Issen is the counter payoff, and soul absorption feeds progression. Bosses simply demand tighter execution of the same loop.

Difficulty matters here more than anywhere else. Story eases the punishment for a missed read, while Action applies the intended pressure and Carnage waits until after your first clear.

The free demo is the cheapest boss practice available: it ends with Ganryu, which is a fair sample of how a real encounter in this game is structured.

Bosses shown publicly so far

Two encounters are documented in official material without spoiling the wider campaign. The demo ends with a duel against Ganryu, and a PlayStation Blog article about the demo update introduced a new area along with the boss Daidara.

Both are safe reference points for a new player, because Capcom itself put them in promotional material. They also demonstrate the structure a boss fight follows: read the tell, defend correctly, answer with a counter.

Everything beyond those two is campaign content, which is why full lists carry spoiler warnings on this site.

How to phrase the answer accurately

The correct formulation is "18 main boss fights, counted from the in-game Boss Rematch menu by a third-party guide". That sentence carries the number, the method and the source in one breath.

Writing "18 unique bosses" or "Capcom confirmed 18 bosses" would be wrong on both counts. Neither the uniqueness nor the official endorsement is supported.

If you need the full list

The PowerPyx boss guide lists all 18 fights in Boss Rematch order and includes Carnage difficulty notes, which makes it the practical reference for a completion run. It is also, inevitably, a spoiler for the campaign.

Any published list can miss optional or conditional encounters until enough players verify it, so treat a boss list as provisional in the weeks after launch.

For a first playthrough, the number alone is usually enough. Learning tells as you meet each boss is more useful than knowing who is coming.