Ninja Masters Cheat Codes for Arcade

Time Attack Mode
Time attack mode: At Kamui press D, L, U, L, D, L, U, L, D, L, L, L, L, U, and hit C+D.

Secret Character
Play as Ranmaru: For P1 at Kamui press L, D, L, U, L, D, L, U, R, D, R, U and hit C+D.
For P2 At Sasuke press R, D, R, U, R, D, R, U, L, D, L, U and hit C+D.