Onimusha Warlords is packed with hidden content that many players never discover. This guide reveals the top 7 most significant secrets in the game.
The Bishamon Sword
The Bishamon Sword is the most powerful weapon in the game, yet many players complete Onimusha Warlords without ever finding it. It is hidden at the bottom of the Dark Realm bonus dungeon.
To obtain it, you must:
- Access the Dark Realm through the well in West Town
- Clear all approximately 20 floors of the dungeon
- Defeat the final wave on the last floor
- The Bishamon Sword appears as a reward
The sword has 80 base attack (150 max), all three elemental attributes, and a room-wide magic attack. It is essential for S Rank runs and makes New Game Plus trivial.
Secret 1 - The Bishamon Sword (Ultimate Hidden Weapon)
Onimusha Warlords is packed with hidden content that many players never discover. This guide reveals the top 7 most significant secrets in the game.
The Bishamon Sword
The Bishamon Sword is the most powerful weapon in the game, yet many players complete Onimusha Warlords without ever finding it. It is hidden at the bottom of the Dark Realm bonus dungeon.
To obtain it, you must:
- Access the Dark Realm through the well in West Town
- Clear all approximately 20 floors of the dungeon
- Defeat the final wave on the last floor
- The Bishamon Sword appears as a reward
The sword has 80 base attack (150 max), all three elemental attributes, and a room-wide magic attack. It is essential for S Rank runs and makes New Game Plus trivial.
Secret 2 - Ultimate Mode
The Hidden Game Mode
Ultimate Mode is a secret difficulty setting that gives you an overpowered playthrough. To unlock it, you must:
- Complete the game at least once
- Collect all 20 fluorites in a single playthrough
- Obtain the Bishamon Sword
- Save your clear data after the final boss
In Ultimate Mode, you start the game with all weapons at maximum level, maximum HP, and maximum MP. This mode is perfect for speedrunning or experiencing the story without combat difficulty.
Secret 3 - Hidden Fluorite in Breakable Walls
Fluorites Behind Walls
Several fluorites in Onimusha Warlords are hidden behind breakable walls that look like ordinary environment textures. These walls have subtle cracks that are easy to miss in low lighting.
Locations of breakable wall fluorites:
- Keep 1F corridor - crack in the eastern wall
- Underground Passage - crack near the second fork
- Temple basement - crack behind the statue
To break these walls, simply attack them with any weapon. You will hear a distinctive cracking sound when the wall breaks, revealing a hidden room.
Secret 4 - The Soul Absorption Mini-Game
Hidden Mini-Game Mode
Collecting all 20 fluorites unlocks a secret mini-game accessible from the main menu. This mini-game is a soul absorption challenge where you must collect as many souls as possible within a time limit.
The mini-game features:
- Rapidly spawning souls of all colors
- A 60-second time limit
- A high score system that tracks your best run
- Special purple souls worth bonus points
While purely cosmetic, it is a fun distraction and a test of your soul absorption reflexes.
Secret 5 - Extended Ending Cutscene
The Secret Extended Ending
If you collect all 20 fluorites before defeating Fortinbras, an extended version of the ending cutscene plays after the credits. This extended ending includes additional story content and character interactions that are not shown in the standard ending.
The extended ending features:
- Additional dialogue between Samanosuke and Kaede
- A teaser for the events of Onimusha 2
- Extra lore about the Oni clan and the demon world
If you miss the fluorites, you can still see the extended ending by collecting them all in New Game Plus and beating the game again.
Secret 6 - Hidden Power Jewels in the Dark Realm
Secret Stat Boosts
Beyond the fluorites, the Dark Realm contains hidden Power Jewels and Magic Jewels on specific floors. These permanently increase your maximum HP and MP respectively.
| Floor | Hidden Item | Effect |
|---|---|---|
| Floor 7 | Power Jewel | +1 max HP bar |
| Floor 13 | Magic Jewel | +1 magic gauge |
| Floor 17 | Power Jewel | +1 max HP bar |
These items are not awarded automatically. You must find them hidden on the floor, usually behind breakable objects or in corners. Check every corner of each Dark Realm floor thoroughly.
Secret 7 - Kaede's Alternate Costume
Hidden Costume Unlock
In the remastered version of Onimusha Warlords (2018/2019), completing the game unlocks an alternate costume for Kaede. This costume is a modern outfit that replaces her default ninja garb.
To unlock it:
- Complete the main story on any difficulty
- Save your clear data
- Start New Game Plus
- Open the options menu and toggle the costume setting
The alternate costume is purely cosmetic and does not affect gameplay, but it is a fun easter egg for fans of the series.