Fighting Force

Cheat mode:
Hold Left + Square + L1 + L2 + R1 + R2 at the main menu. The words "Cheat Mode" will appear at the bottom of the screen to confirm correct code entry. Enter the options screen to access invincibility and stage select options. Alternately, hold Left + L1 + R2 + Square at the main menu.
Information in this section was contributed by James Dalton and den364.

Unlimited lives:
Pause game play and press Right, Square, Triangle, Square, Triangle, X.

Hint: Extra weapons:
After completing a level and viewing the destruction bonus, quickly move to the exit. The screen will flash and a sound will confirm that the trick was done correctly. A shotgun or handgun will appear when the next level begins. If the game is in two player mode, each player will receive either weapon.

Hint: Bazooka:
Start at the first level and kill all the enemies. After that, go to the police car and hit it until the Bazooka pops out of the trunk. Grab it and destroy the police car. Next, go inside where the gate was destroyed, enter, then quickly turn around and blow up the Black FED Van that is coming at you. You now do not have to kill the FEDS that were inside, and will triple your score.
Information in this section was contributed by cartoonland.

Hint: Car engine:
Select Smasher as a character. Begin the game and play kill the first two enemies. Beat up the police car to find a bazooka. Punch at the front of the police car until you get the engine.
Information in this section was contributed by jed fisher.

Hint: Mega Gun:
In the Subway after you beat Exo, go on the Train that takes you to the Army Base. Once there, kill all the enemies but one. Then, go destroy the Army Airplane and get the gun. Shoot the person with the gun and wait for the Army Truck to pull up and shoot it. It totally destroys the Truck and now you do not have to bother with the enemies that were once inside. This also will triple your score.
Information in this section was contributed by cartoonland.

Hint: Easy Boss battles:
Play as Hawk. When you reach a Boss, grab him and keep pressing Square.
Information in this section was contributed by twincats.

Hint: Defeating the first Boss:
If you get a gun, shoot him and take his ax. Then, throw the ax at him. Pick it up and throw it at him again. Then, kick and punch until he is defeated.
Information in this section was contributed by twincats.

Hint: Easy battles:
Note: This trick requires a controller with a turbo feature, such as the Performance Gamepro. Set the kick and punch buttons to the turbo feature. You will be able fight quicker and defeat enemies easier.
Information in this section was contributed by Derek.

Hint: Defeating Zeng:
Keep away from Zeng and keep hitting the yellow boxes around the ring. You will find shotguns, handguns, grenades, and health. The easiest way to defeat Zeng is to shoot him with all the guns, then throw the grenades at him. Wait until "3" is on the grenade then run and use your special move (Circle, X). Use the health to regain full strength.
Information in this section was contributed by BDavis9159.