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- 100 Bad Cop points
Pause game play and enter the CompStat/Map screen. Then, hold [Shift] + F and press [Space] three times.
- 100 Career points
Pause game play and enter the CompStat/Map screen. Then, hold [Shift] + F and press [Delete] three times.
- Character upgrades
As your rank gets better (5 being the worse, and 1 being best), you can buy better upgrades for your character at the Police Department Armory, such as better zoom for your guns, or a more slow-mo dive. You can also purchase new guns to use. The guns will be in the trunk of your police car that you get from the garage.
- Defeating President Lincoln
When fighting President Lincoln makes sure that you have bought the tranquilizer gun at the police armory when you have reached the second rank. Stand in the room with all the thugs. Shoot out the window and zoom in on Lincoln across the scaffold. Shoot him until he passes out. Then, interrogate him.
- Driving skill ranks
Reach the indicated rank to have the corresponding weapons driving skills available in the police garage.
Detective Rank 1: Nitro Boost
Detective Rank 2: Side Wheelie
Detective Rank 3: Peel Boost
Detective Rank 4: Switchblade
Detective Rank 5: Insta-turn
- Easy money
Go into a store, extort them, then come out. Walk back in and repeat as many times as desired to get more money.
- Easy ranks
If you do not mind earning Bad Cop points, use the following trick to rank up detective levels easily. Go to a place where there are lots of people, such as Central Park. Frisk as many people as you can, plant evidence, and arrest them. You will get one Bad Cop point if you arrest them correctly. Also, you will get three career points every time you do so. It should only take about a half hour at the most to rank up a level.
Use the following trick to get easy arrests without Bad Cop points. Go into a car dealership or a dojo and frisk all the customers inside. All the customers will have something for you to take as evidence. Arrest them for extra career points.
For easy arrests, run and tackle people, then punch them about three times. Get off them and someone near or that person will start to fight with you. Knock them out and arrest them.
- Faster shotgun reloading
When using a shotgun, slow reloading can be a big problem. When you start to reload a shotgun and just stand there, it is very slow. Start running around to reload almost three times as fast.