Here are some cheats and tips for the game The Oneechanbara.
All bonuses:
Quickly press Up, Down, Up, Down, L1, R1, L2, R2, L3,
R3, Up, Down, Up, Down, L1, R1, L2, R2, L3, R3 when
“Push Start Button” appears at the title screen. A
sound will confirm correct code entry. Enter quest
mode to unlock all secrets.