Manhunt 2 Cheat Codes: Enter these codes either at the main menu or in-game to activate. Code                                                                                        Effect UP UP DOWN DOWN LEFT RIGHT LEFT RIGHT Infinite Ammo UP DOWN LEFT RIGHT UP DOWN LEFT RIGHT Unlock All Stages Watermark 20 Code: At the pause menu screen enter ZZZCZZCCZ to toggle the Watermark 20 code on or off. You will hear cheering and clapping after performing an execution if it is on.