Bad Boys: Miami Takedown Cheats

At the "Press Start" screen, press B, Up, X, Y, Right, Down. If you entered the code correctly, you will hear the sound of a gun. Press Start, go to police headquarters, and select "Cheats". Each individual cheat may now be enabled or disabled as desired.

Everything:
Press B, Up, X, Y, Right, Down at the the Start or Pause screen and you will hear a confirmation sound if the cheat has been entered correctly.

B, Up, X, Y, Right, Down

At the Start/Pause screen, press B, UP, X, Y, RIGHT, DOWN. You'll hear a gun shot noise if you enter the code right.