Completion

Onimusha Achievement Guide: All Achievements and Unlock Conditions

Updated: 2026-08-064 sections

Achievements and trophies were added to Onimusha: Warlords with the 2018 remaster for PlayStation 4, Xbox One, Nintendo Switch, and PC. The original PlayStation 2 and Xbox releases had no achievement system, so if you are playing those versions, none of this applies. In the remaster, achievements are tied to a mix of story progression, collectibles, combat performance, and completion challenges, and most of them can be earned in a single thorough playthrough if you plan ahead.

A few important details shape your approach. First, many achievements are missable in the sense that you must perform a specific action during a specific stage, so it helps to know the list before you start rather than discover requirements after the fact. Second, the remaster lets you switch between modern analog controls and classic tank controls, and some combat-based achievements are easier with one scheme than the other. Third, Ultimate Mode -- unlocked after your first clear -- makes most combat and collectible achievements far simpler, so a two-run strategy is highly recommended.

Below, the achievements are grouped by type so you can plan a route that minimizes replays.

How Achievements Work in the Remaster

Achievements and trophies were added to Onimusha: Warlords with the 2018 remaster for PlayStation 4, Xbox One, Nintendo Switch, and PC. The original PlayStation 2 and Xbox releases had no achievement system, so if you are playing those versions, none of this applies. In the remaster, achievements are tied to a mix of story progression, collectibles, combat performance, and completion challenges, and most of them can be earned in a single thorough playthrough if you plan ahead.

A few important details shape your approach. First, many achievements are missable in the sense that you must perform a specific action during a specific stage, so it helps to know the list before you start rather than discover requirements after the fact. Second, the remaster lets you switch between modern analog controls and classic tank controls, and some combat-based achievements are easier with one scheme than the other. Third, Ultimate Mode -- unlocked after your first clear -- makes most combat and collectible achievements far simpler, so a two-run strategy is highly recommended.

Below, the achievements are grouped by type so you can plan a route that minimizes replays.

Story and Completion Achievements

The largest group of achievements is awarded simply for progressing through the story. These unlock automatically as you defeat bosses and clear stages, so you cannot miss them through normal play. Expect achievements for reaching major story beats such as obtaining each elemental weapon, defeating Osric, surviving the encounter with Guildenstern, overcoming Marcellus, and finally besting Fortinbras.

Completing the game on different difficulties usually grants separate achievements, so a run on a higher difficulty after your first clear will stack the story rewards again. Because Ultimate Mode trivializes lower-difficulty combat, the most efficient path is to clear the game once on a comfortable difficulty to unlock Ultimate Mode, then tackle any remaining difficulty achievements with maxed gear.

A few story-adjacent achievements reward specific in-stage actions, such as completing a chapter within a time limit or without using healing items. Read each condition before entering the relevant stage so you can adjust your playstyle -- for example, saving your herbs and relying on yellow souls for healing during a no-item run.

Collectible and Combat Achievements

The collectible achievements center on the game's hidden items. The headline target is collecting all Fluorites, which unlocks a bonus achievement and contributes to 100% completion. Fluorites are scattered across nearly every area, many in easy-to-miss corners or behind puzzles, so use a location checklist and sweep each room carefully. Other collectible-style achievements reward finding all Power Jewels and Magic Jewels, which raise your maximum health and magic respectively.

Combat achievements typically reward skillful or stylish play. These can include defeating a set number of enemies, landing a certain count of critical or charged attacks, performing Issen counter-attacks, or clearing the Dark Realm survival mini-game. The Dark Realm is the marquee combat challenge: descend through its waves, and reaching the bottom both grants an achievement and rewards the Bishamon Sword.

For combat achievements that demand specific techniques, practice the timing in safer areas first. Issen counters in particular reward a precise guard-then-strike rhythm that becomes second nature after a few minutes of drilling against basic Genma.

Hardest Achievements and How to Tackle Them

The hardest achievements usually combine restrictions: S-rank clears on every stage, no-heal runs, and full Dark Realm completion. S-rank depends on factors like clear time, damage taken, and enemies defeated, so the strategy is to move efficiently, avoid unnecessary hits, and still engage enough foes to keep your kill count high. Memorizing stage layouts and enemy placements is the single biggest factor in climbing from A to S.

No-heal or limited-item achievements are best attempted in Ultimate Mode, where maxed weapons kill enemies fast enough that you take little damage and yellow souls cover most healing needs. Pair this with defensive magic and careful dodging against bosses. For the Dark Realm, come in with your best weapon fully upgraded and a stock of items, and learn the wave compositions so you never get cornered.

Finally, do not chase everything in one run. Knock out story and collectible achievements first, then dedicate a clean Ultimate Mode run to the hardest combat and rank achievements with a checklist beside you.

Frequently Asked Questions

No. Achievements and trophies were added in the 2018 remaster for modern platforms. The PS2 and Xbox versions have no achievement system.

Most can be earned in one thorough run, but a few -- like high-difficulty clears and S-rank stages -- are much easier in Ultimate Mode after a first clear, so two runs is the practical approach.

Most players find full Dark Realm completion or S-rank on every stage the toughest. Both reward efficient, low-damage play and are best attempted with maxed gear in Ultimate Mode.