Ready 2 Rumble 2 Cheat Mode: Go to the character select screen and press Left, Right, Left, Left, Right, Up, Down, R(5times), L. All Characters: Go to the character select screen and press Left, Left, Right, L, Left, Right, Right, R, R, L. Undead Boxer: Go to the character select screen and press Left, Up, Right, Down, R, R, L. Full First Level Rumble Meter: Pause game play, then press R, L, Down, Up, Up, Left, R, R, R, L. Full 2nd Level Rumble Meter: Pause game play, then press R, R, L, Down, Up, Up, Left, R, R, R, R, L.