Onimusha 3: Demon Siege

Michelle's alternate costume

Successfully complete the game on the normal difficulty setting to unlock Michelle's first alternate costume.

Michelle's second alternate costume

Successfully complete the game with an "Onimusha" rank to unlock Michelle's second alternate costume. Alternately, play the game with a memory card with a saved game from Onimusha: Blade Warriors.

Jacuqe's alternate costume

Successfully complete the game on the normal difficulty setting to unlock Jacuqe's alternate costume.

Panda costume

Successfully complete secret training mode to unlock the panda costume. Alternately, play the game with a memory card with a saved game from Onimusha: Blade Warriors.

Alternate ending sequence

Increase all seven Haori of Ako to the maximum to view the alternate ending sequence. This requires all Kodama to be found.

Easy difficulty

Intentionally lose the game two times on the normal difficulty setting to unlock the easy difficulty setting.

Hard difficulty

Successfully complete the game on the normal difficulty setting to unlock the hard difficulty setting.

Issen mode

Successfully complete the game on the hard difficulty setting to unlock Issen mode.

Oni Hard mode

Successfully complete the game in Issen mode to unlock Oni Hard mode.

Ultimate mode

Successfully complete the Oni shooting mini-game to unlock Ultimate mode. The game will start with Sam having the Bishamon sword; Jacque having his best Oni Musou; infinite arrows, bullets, infinite Oni power, thirty Medicines, and ten Talismans.

Original Onimusha swords

Successfully complete the game with all three items from the Phantom Realms. Then, start a new game to have all three swords from the original Onimusha.

Bishamon sword

Successfully complete the game with the "Onimusha" rank. Alternately, get the Bishamon sword in the Phantom Realm in Honnouji when Sam goes to the past.

Oni Musou

Have Jacque go through the Phantom Realm in Honnouji.

Heihachi Buraiden mode

Successfully complete the game. Heihachi (Honda) will now be selectable.

Oni Shooting mini-game

Successfully complete the game on the normal difficulty setting to unlock the Oni Shooting mini-game.

Puzzle mini game

Solve all the puzzles in the game to unlock the puzzle mini game.

Secret training mode mini-game

Successfully complete normal training mode, then complete the game to unlock the secret training mode mini-game.

Ako's Black Haori

Successfully complete Issen/Oni training to unlock Ako's Black Haori.