Time Crisis 3

Hint: Tower blowout:
In the first level when you reach the part when you see a tower, shoot at it with the grenade launcher. Wait for a few seconds and it should burst into flames.
Information in this section was contributed by mark6617.

Hint: Exploding barrels:
After the Tower (whether you blew it up or not), there will be a normal shooting scene, then a scene where you can shoot the barrels. Shoot them until they explode (usually three) to collect 5,000 bonus points and to speed up the game.
Information in this section was contributed by Bondboy.

Hint: Blowing up boxes:
In Area 2 of Stage 2, after you cross the floating docks you must fight two "Commanders". Shoot the box labeled "Danger" three times to score 5,000 bonus point and to save some time.
Information in this section was contributed by Bondboy.

Hint: Fuel tanks:
In Stage 1, in the area where you get into the ship's engine room with big fuel tanks, shoot through the first wave of enemies. Then, on the second wave straight ahead behind the enemies should be a fuel tank. Shoot it until it explodes. This will save ammunition and time.
Information in this section was contributed by Chico.

Hint: Fire faster:
Turn the gun sideways and put your middle finger on the trigger and your index finger on the slide of the gun.
Information in this section was contributed by Robert Motes.