State of Emergency Cheats

Use head as a weapon
Use a shotgun and shoot them. A part of their body will fall off and you can pick it up.

Destroying buildings
Use any and all explosives to your advantage. Rocket launchers, grenade launchers, and even molotov cocktails can be used to blow up buildings. When throwing an item into a building, face a window directly and it will go right in. Destroying buildings is where the big money is at.

Disable bombers
To disable bombers, set them on fire with the flamethrower. They will die without exploding.

Easy power-ups
Find an area in any level where you can run back and forth reasonably far and has weapons power-ups on either side. Draw a large crowd of enemies between this area and simply proceed to run back and forth. When you are ready to let loose, turn around and begin to strafe. Run to the other side as you pick up all the diseased ones' health and time bonuses. When you reach the other side, take your new weapon and start again.

Defeating ATO guards
While in Revolution mode, drop your weapon before moving past an ATO guard. They will ignore you if you are not causing problems and have no weapon. You can usually find another weapon replacement later.

Recommended weapons
Although the AK47 has more power than the M-16, it has a slower rate of fire and not as much range. The mini-gun can carve through a crowd full of people in five seconds or less.