Six Stars
The police will stop chasing you once you reach a six-star wanted level, and you will instead be pursued by the National Guard. They will come at you with tanks and attack helicopters that can destroy your car or you in one hit. It is much more difficult to lower your wanted level once you have reached six stars without using a cheat or dying. Raising your wanted level can make it more fun if you enjoy being chased.
Xbox
Press "Black," "Black," "L," "Black," "Left," "Right," "Left," "Right," "Left" sequentially on the Xbox controller during the game to automatically add two stars to your wanted level. The game cannot be paused when entering the cheat. Repeat the code two more times to give yourself all six stars. Enter "Black," "Black," "L," "Black," "Up," "Down," "Up," "Down," "Up," "Down" to get rid of your wanted level.
PlayStation 2
Enter the code "R2," "R2," "L1," "R2," "Left," "Right," "Left," "Right," "Left" sequentially on the PlayStation 2 controller during gameplay. The code will not work if the game is paused. Two stars will automatically be added to your star rating if you entered it correctly. Enter the code two more times to reach six stars. Press "R2," "R2," "L1," "R2," "Up," "Down," "Up," "Down," "Up," "Down" to lower your wanted level.
PC
Type "morepoliceplease" into the keyboard when playing the game. A message should pop up that says "Cheat Activated." Two stars will be added to your wanted level. Type in the code two more time to reach the six-star rating. Enter "nopoliceplease" to erase the wanted level.