To get new characters hold L and press: B, C-left, C-up, C-right, C-down, A. Then keep L held down and press: A, C-down, C-right, C-up, C-left, B. Keep L pressed and press on the D-pad: Up, Right, Down, Left, Right, Left. To get the secret options hold L and press: C-up, C-right, C-left, C-down, B, A. Now go to the options screen and enjoy!