

Successfully complete the Oni shooting mini-game to unlock Ultimate mode. Successfully complete the game in Issen mode to unlock Oni Hard mode. In this mode, only critical hits can kill opponents. Successfully complete the game on the hard difficulty setting to unlock Critical (Issen) mode. Successfully complete the game on the normal difficulty setting to unlock the hard difficulty setting. Intentionally lose the game two times on the normal difficulty setting to unlock the easy difficulty setting. Increase all seven Haori of Ako to the maximum to view the alternate ending sequence.

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

Successfully complete the game with an "Onimusha" rank to unlock Michelle's second alternate costume. Successfully complete the game on the normal difficulty setting to unlock Michelle's first alternate costume.
