Urban Chaos: Riot Response

Complete the indicated number of Emergency Situations to unlock the corresponding weapon:

Shotgun Mk. 1: Complete 1 emergency situation.
Assault Rifle Mk. 1: Complete 2 emergency situations.
Shotgun Mk. 2: Complete 3 emergency situations.
Assault Rifle Mk. 2: Complete 4 emergency situations.
Shotgun Mk. 3: Complete 5 emergency situations.
Assault Rifle Mk. 3: Complete 6 emergency situations.
Thermal Breather: Complete Webster Street.
Terror Mode: Complete all story missions on any difficulty setting.

At the main menu, press Up, Up, Down, Down, Y, Down, Up, Y to unlock the Cheat option at the title screen. Select the Cheat option, then enter one of the following case-sensitive codes to activate the corresponding cheat function, which can be toggled on or off (except for All levels and emergencies):

All levels and emergencies
Enter KEYTOTHECITY as a code to unlock all levels and emergencies.

Long range stungun
Enter FRYINGTIME as a code.

Minigun instead of pistol
Enter MINIFUN as a code.

Mk. 3 assault rifle with unlimited grenades
Enter ULTIMATEPOWER as a code.

Mk. 4 pistol
Enter ZEROTOLERANCE as a code.

Bullets set fire to enemies
Enter BURNINGBULLET as a code.

Thermal breather Mk. 2 has better smoke visibility
Enter ISEEYOU as a code.

Disco mode
Enter DANCINGFEET as a code.

Terror mode
Enter BURNERSREVENGE as a code.

Squeaky voices
Enter WHATWASTHAT as a code.

No heads
Enter KEEPYOURHEAD as a code.

At the "Main Menu Screen" press Up, Up, Down, Down, Y, Down, Up, Y to unlock the "Cheat" Screen/Option. Select the "Add Cheat" option before entering one of the following Case-Sensitive Cheats below:

Complete the game to unlock the Terror difficulty setting and another level of medals.

Capture the indicated number of gang leaders alive to unlock the corresponding Emergency mission:

Emergency Downtown: Capture 1 gang leader alive.
Emergency South Side Lot: Capture 2 gang leaders alive.
Emergency Dockyard: Capture 4 gang leaders alive.
Emergency Sewers: Capture 6 gang leader alive.
Emergency Thompson St.: Capture 8 gang leader alive.
Emergency Angel Heights: Capture 10 gang leader alive.

Rotate the Right Analog-stick clockwise to make Nick spin the gun he is holding. Note: This only works with the pistol.

Get the indicated number of medals to unlock the corresponding bonus:

Extra Pistol Clip: 2 medals
Shield Mk 2: 4 medals
Pistol Damage Upgrade: 6 medals
T-Zero Body Armor: 8 medals
Smoke Grenades: 10 medals
Stun Gun Mk 2: 12 medals
Riot Grenades: 14 medals
Second Extra Pistol Clip: 16 medals
Shotgun Damage Upgrade: 20 medals
Grenade Belt: 24 medals
Extra Shotgun Clip: 28 medals
Assault Rifle Damage Upgrade: 32 medals
Pistol Mk.2: 36 medals
Extra Assault Rifle Clip: 40 medals
T-Zero Battle Armor: 45 medals
Extra Pistol Clip: 50 medals
Upgraded Grenade Belt: 55 medals
Pistol Damage Upgrade: 60 medals
Extra Shotgun Clip: 65 medals
Stun Gun Range Upgrade: 70 medals
Pistol Mk.3: 75 medals
Extra Assault Rifle Clip: 80 medals
Shotgun Damage Upgrade: 85 medals
T-Zero Assault Armor: 90 medals
Extra Shotgun Clip: 95 medals
Assault Rifle Damage Upgrade: 100 medals
Extra Pistol Clip: 105 medals
Extra Assault Rifle Clip: 110 medals
Pistol Damage Upgrade: 115 medals
Upgraded Grenade Belt: 120 medals
Extra Shotgun Clip: 125 medals
Pistol Mk. 4: 130 medals
Fourth Extra Assault Rifle Clip: Collect 135 medals
Second Stun Gun Range Upgrade: Collect 140 medals
Third Shotgun Damage Upgrade: Collect 145 medals
Maximum Grenade Belt: Collect 150 medals
Third Assault Rifle Damage Upgrade: Collect 160 medals
Infinite Pistol Ammo: Collect 170 medals
Infinite Shotgun Ammo: Collect 180 medals
Infinite Assault Rifle Ammo: Collect 190 medals
Mini-gun: Collect 204 medals

At any time during gameplay, rotate the right analog stick 720 degrees (two full rotations). Your crosshair should turn a light blue color (if you're using the pistol, you'll also see a twirling animation), and the next enemy you defeat will go down in slow-motion. You can do this as many times as you want.

To unlock the following, successfully complete the game.