Reassign the 'jump' key from + or ENTER to a key closer to that of the 'duck key.' For example, on my extended keyboard, I had TAB as 'crouch,' so I assigned 'jump' to the '1' key, allowing me to go from 'crouch' to 'jump' with ease.
Crouching is a good way to move, and makes surviving a whole lot easier. Please note that you cannot enter a door while crouching.
Shooting barrels, crates, and boxes (among others) reveals special items worth points, as well as Energy, ammunition, weapons, and lives.
Try shooting everything at least once. You never know what can blow up unless you try.
The Evil Ninja's weapons have the ability to 'home in' on you. Crouching and moving behind walls, etc. are a way of avoiding these weapons.
Enter the BONUS ROOMS some of the time. They have needed supplies and items.
Note: The manual claims that wall-mounted cannons can be destroyed by jumping and shooting, but this never worked for me.
Throughout this area, men are up in the trains shooting at you. I have found that, compared to the other enemies, they pose little threat and are best left alone.
To conserve ammunition, a good move is to shoot at every few barrels. As you progress in the stage, you will find a brown 'shack.' Blowing this open reveals a few packages of drugs worth 2000 points each. This 'shack' is right after the sign, but before the exit. Blow up the last barrel before the exit.
You are now on the streets of the city. Blowing up newspaper machines should be your main priority here as they all contain Energy. Move past the exit, blow up the newspaper machine for an extra life, and collect the missiles. This is your typical 'shoot everything that moves with no real danger' stage.
The subway provides extra missiles, three Five-Shot Machine Guns, Energies, and two extra lives. Blow up the Coke machines and collect the drugs.
Look out for the Ninjas. Crouching helps to avoid the ninja-stars. (Notice the MEAN STREETS posters? Nice advertisement, huh?)
In the ghetto, take advantage of all the doors. The lasers inside have patterns, so take the time to observe the pattern instead of blindly charging through. In these bonus areas, always go past the exit and the last laser. Doing this causes an extra life and other goodies to fall. Blow up some cans and get all the goodies you can.
Crouching is a good way to defeat the knife-wielding, grenade-tossing baddies. Blow up the can right after the sidewalk is blocked for the first time to receive an extra life.
As you approach two doors almost right next to each other, go in the second one. Inside are three Energies and more items. Blowing up fire hydrants reveals Energies, and at the bottom of the screen near the exit is a Ball Blaster Gun. Don't waste bullets _or_ missiles on the car.
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