Play as Charlotte and get a perfect. Then, quickly press A, B,A ,C, A, D, Up, Down, Left.
Play As Amakusa
Enter versus mode and select any character. Lose and then save the game. Load the game and select Charlotte as your character with controller 2 and continue the game. Press start on controller 1 in the bonus phase. Player 2 will be changed to Amakusa.
Play as Kuroko
Go to versus mode and press up, down, left, up, down, right, and A.
Play as Shiki
Highlight Random Select and press up, up, down, down, up, down, down.
Play as Zankuro
Highlight Random Select and press down, down, up, up, down, up, up.
Red Blood, More Violence
At the difficulty select screen. Choose your difficulty, and press and hold all four buttons A, B, X, Y on the Wii Classic Controller at the exact same time.