I cover all 52 achievements in the game, including story, boss, missions, collections, combat, upgrades, difficulty, and Strong Enemy Rematch achievements. I also include a complete roadmap to help me reach 100% completion with a minimum of two playthroughs.
None of the achievements are permanently missable, so I play through the game without worrying about missing anything.
Onimusha Achievement Guide – All Achievements
There are 52 achievements in total.
- Estimated time: 40–70 hours
- Minimum playthroughs: 2
- First playthrough difficulty requirement: None
- Highest difficulty requirement: Oni Slayer
- Missable achievements: No
I play through the game without worrying about permanently missing achievements.
Difficulty Modes
The game has three difficulty modes:
Casual Mode: Operation prompts are enabled by default. The timing windows for parrying and Issen are more lenient, and enemies deal less damage.
Swordplay Mode: This mode is intended for players looking for more of a challenge. Button prompts are removed for a more authentic hardcore combat experience.
Oni Slayer Mode: I cannot select this difficulty during my first playthrough. It becomes available in New Game+ after I complete the game once. Enemy attack power and configurations are significantly increased, making dodging, parrying, and Issen much more difficult.
Completing the game on Oni Slayer unlocks The True Onimusha.
For my first playthrough, I choose Casual Mode or Swordplay Mode based on my experience with action games and the series.
Platinum Achievement
Peerless
- Unlock all achievements.
I unlock all 52 achievements to obtain The Unrivaled Swordsman.
Story / Boss Achievements
Most achievements in this section unlock naturally through story progression. I simply continue through the main story.
Note: This section contains boss names and some story spoilers.
Onimusha Showdown
- Defeat Sasaki Ganryu.
I complete the required story objective to unlock Onimusha Showdown.
Get Stuffed
- Defeat Dai Datsu.
I complete the required story objective to unlock Get Stuffed.
Second Helping
- Defeat Rasho Gan.
I defeat Rasho Gan during the story.
Howling Wind
- Defeat Ibu.
I defeat Ibu during the story.
Dokyo’s Fixation
- Defeat Daiyue.
I defeat Daiyue during the story.
Benkei: Out, but Not Down
- Defeat Benkei.
I defeat Benkei during the story.
Crashing Lightning
- Defeat Fura.
I defeat Fura during the story.
Wide Awake
- Defeat Shuten Doji.
I defeat Shuten Doji during the story.
The Perfect Storm
- Defeat Ibu and Fura.
I defeat Ibu and Fura during the story.
We Done Here?
- Defeat Sasaki Ganryu in Arashiyama.
I defeat Sasaki Ganryu in Arashiyama during the story.
End This Madness
- Defeat Doko.
I defeat Doko during the story.
Baited by Benkei
- Defeat Benkei in Rendai-no.
I defeat Benkei in Rendai-no during the story.
Truly, Thank You
- Defeat Minamoto no Yoshitsune.
I defeat Minamoto no Yoshitsune during the story.
Mission / Encounter Achievements
Mystery Solved
- Complete Kyoto Tales for the first time.
I complete any one Kyoto Tales mission to unlock this achievement.
Kyoto Tales are side missions that gradually become available as I progress through the main story.
Demystified
- Complete all Kyoto Tales.
I complete all Kyoto Tales in the game.
I continue unfinished Kyoto Tales after completing the game, so I do not need to worry about missing them.
Life-Saver
- Complete One Tree’s Shade for the first time.
I complete any one One Tree’s Shade mission to unlock this achievement.
No Job Too Small
- Complete all One Tree’s Shade.
I complete all One Tree’s Shade missions in the game.
Serves You Right
- Defeat Hyakue at Kiyomizu-dera.
I complete the corresponding mission in the Kiyomizu-dera area and defeat Hyakue.
Citizen Savior
- Rescue 30 residents attacked by Genma.
While exploring, I find residents being attacked by Genma. I defeat the nearby Genma and rescue the residents.
I rescue 30 residents in total to unlock this achievement.
Selfish Selflessness
- Rescue a merchant attacked by Genma.
I rescue a merchant who is being attacked by Genma during exploration.
Collection Achievements
No Dog Left Behind
- Rescue a Shisa for the first time.
I find and rescue a Shisa during exploration for the first time.
For the Love of Dog
- Rescue all Shisa.
I find and rescue all Shisa in the game.
I collect these naturally while exploring each area. I also continue collecting them after completing the game.
Genma-ologist
- Collect all Genma Records.
There are 23 Genma Records in the game.
Most Genma Records are found in hidden chests revealed using Oni Power. While exploring, I use Oni Vision to find Oni markings and then use Oni Power to reveal the hidden chests.
I collect all 23 Genma Records to unlock this achievement.
Difficulty / Rematch Strong Enemies Achievements
The True Onimusha
- Complete the game on Oni Slayer difficulty.
I unlock Oni Slayer after completing the game for the first time.
I recommend completing my collection, upgrades, and other content during the first playthrough. I then start New Game+ on Oni Slayer.
I complete the main story on this difficulty to unlock The True Onimusha.
Strong Enemies Return
- Defeat 1 enemy in Strong Enemy Rematch.
I enter Strong Enemy Rematch from the Training Grounds and defeat any one enemy.
Glutton for Punishment
- Defeat all enemies in Strong Enemy Rematch on all difficulties.
I complete all strong enemy battles in Strong Enemy Rematch.
When I complete a Strong Enemy Rematch battle on Oni Slayer difficulty, it also counts for the other two difficulties. I do not need to replay the challenges separately on each difficulty.
I simply complete all Strong Enemy Rematch battles on Oni Slayer to satisfy the requirements for all difficulties.
I recommend completing the Oni Slayer main story first and then returning to the Strong Enemy Rematch challenges.
Character Growth / Equipment Upgrade Achievements
The Winding Way of the Sword
- Fully learn and upgrade either all Basic Abilities or all Special Abilities.
I fully learn and upgrade every ability in either the Basic Abilities or Special Abilities category.
Well-Rounded
- Upgrade all Basic Abilities and Special Abilities.
I fully learn and upgrade all Basic Abilities and Special Abilities to their highest stages.
This requires a large amount of upgrade materials. I collect as much Power Stone and Oni Stone as possible while exploring during my first playthrough.
Ability upgrade progress carries over to New Game+, so I continue working on this achievement later if necessary.
Looking Sharp
- Upgrade equipment for the first time.
I upgrade any piece of equipment for the first time.
Dressed to Kill
- Upgrade all equipment to the highest stage.
I upgrade all upgradeable equipment to their highest stages.
I recommend completing equipment upgrades before the final mission and collecting the materials needed for them.
Oni Armory
- Obtain all Oni Weapons.
I obtain all Oni Armaments in the game.
Some Oni Weapons require story progression or specific content before I obtain them.
Health Is Wealth
- Upgrade any one Ghost Lantern Bag to its highest stage.
I choose any one Hozuki Pouch and upgrade it to its highest stage.
Medical Marvel
- Upgrade all Ghost Lantern Bags to their highest stages.
I obtain all Hozuki Pouches and upgrade them all to their highest stages.
Since fully upgrading everything requires a large amount of resources, I make a manual save once I have enough resources. I then complete this achievement and reload the save to use the resources for other upgrade achievements.
A Real Charmer
- Upgrade any one Talisman to its highest stage.
I choose any one Charm and upgrade it to its highest stage.
Charmed Life
- Upgrade all charms to their highest stages.
I obtain all charms and upgrade them all to their highest stages.
Upgrading Talismans requires a large amount of Red Souls and Blessings.
I make a manual save once I have enough resources, upgrade all Talismans, unlock the achievement, and then reload the save to use the resources for other upgrades.
Combat Achievements
Burning Blade
- Defeat 50 enemies while in the Fiery State.
I build the Fiery Gauge through techniques such as countering.
When the gauge is full, I enter the Fiery State.
I defeat 50 enemies while in this state.
Stop Motion
- Perform 50 Perfect Slash Combos.
I successfully perform 50 Perfect Slash Combos.
Wielder of Oni Armaments
- Defeat 100 enemies with Oni Weapons.
I defeat 100 enemies using any Oni Weapon.
I do not need to use the same Oni Weapon. The total accumulates during normal progression.
Oni’s Oni
- Defeat 50 enemies while in the Fully Awakened state.
I enter the Fully Awakened state and defeat 50 enemies while in this state.
Brutalist
- Successfully perform Issen 50 times.
I attack at the moment an enemy attack is about to hit me to trigger an Issen.
I successfully perform 50 Issen in total.
Flow State
- Defeat 50 enemies with Chain Issen.
After performing an Issen, I attack again at the moment the attack hits to continue with Chain Issen against nearby enemies.
I defeat 50 enemies using Chain Issen.
Silent Violence
- Defeat 20 enemies with Assassination.
I approach enemies from behind without being detected and perform an assassination.
I defeat 20 enemies using assassinations.
Pinch Hitter
- Deflect ranged attacks 50 times.
When enemies use ranged attacks, I deflect them at the correct timing.
I successfully deflect 50 attacks in total.
Deadeye
- Hit enemies in the head with a bow 100 times.
I hit enemies in the head with arrows 100 times.
I only need to land head hits. I do not need to kill enemies with headshots.
Winning Is What Matters
- Attack enemies 50 times using environmental objects.
I use environmental objects to attack enemies 50 times.
Untouchable
- Successfully perform 50 Grab Counters.
I counter enemy grab attacks.
I successfully perform 50 Grab Counters in total.
Coming Through!
- Break enemy defenses 50 times.
I use attacks that break the defenses of guarding enemies.
I break enemy defenses 50 times.
Helm Splitter
- Destroy enemy armor or shields 100 times.
I attack enemies equipped with armor or shields and destroy their armor or shields 100 times.
Get This Thing Off Me
- Absorb at least 30 souls at once.
I allow a large number of souls to accumulate on the battlefield without absorbing them.
Once I have at least 30 absorbable souls, I absorb them all at once.
Berserker
- Defeat 3 enemies with a Continuous Break Issen.
I first make multiple enemies enter the Force Break state.
I then perform a Break Issen on one enemy and continue pressing the attack button at the moment of impact to perform Continuous Break Issen on the other enemies in the Force Break state.
I defeat 3 enemies with one Continuous Break Issen.
Genma Griller
- Cause 3 enemies to enter the Intense Burning state at once.
I cause at least 3 enemies to enter the Intense Burning state at the same time.
Complete Achievement Roadmap
There are 52 achievements in total. None are permanently missable, and I return after completing the game to finish most collection and combat achievements.
Complete the First Playthrough Normally
I choose the difficulty that suits me for the first playthrough.
While progressing through the main story, I complete Kyoto Tales, One Tree’s Shade, Shisa, Genma Records, and other exploration content along the way.
I also work toward the cumulative combat achievements during normal gameplay.
I do not need to strictly follow a guide to avoid missing anything. I simply focus on enjoying the game.
Clean Up Before Completing the First Playthrough
I complete most exploration, collection, and upgrade content before finishing the first playthrough.
My main checklist is:
- Kyoto Tales
- One Tree’s Shade
- All Shisa
- All Genma Records
- Oni Weapons
- Ghost Lantern Bags
- Talismans
- Basic Abilities and Special Abilities
- Equipment upgrades
I also complete any unfinished cumulative combat achievements.
New Game+ – Oni Slayer Difficulty
After completing the game for the first time, I unlock Oni Slayer difficulty.
I start New Game+ on Oni Slayer and complete the entire main story to unlock The True Onimusha.
I cannot change the difficulty during an Oni Slayer playthrough, so I prepare everything beforehand.
Strong Enemy Rematch
After completing Oni Slayer difficulty, I enter Strong Enemy Rematch.
I complete the required battles to unlock Strong Enemies Return, Unbeatable, and the other related achievements.
Clean Up Remaining Achievements
Finally, I check which achievements are still locked.
The remaining achievements will usually be cumulative combat achievements. I choose suitable locations and work on them based on their individual requirements.
Once I unlock all 52 achievements, the complete achievement set is finished.