Manhunt Cheats

Normally once you put in a cheat, the game makes it so you can't save your progress which you gained "unfairly". But this can be avoided. You may have noticed that when you beat a mission with more stars then your previous record, they are shown on the scene selection screen and will stay there as long as the game is on (without having to save). Now...

Play through whatever missions you want using whatever cheats you want. Once you're done go back to the main menu and deactivate all of the cheats by putting them in again. Now play through any mission (I prefer Born Again because it's easy) until you get to a save point and save. All of the stars you earned by cheating are saved as well.

Using this glitch makes getting all 100 stars much easier.