Get 99 credits:
During game-play in 'Armies Of The Night' enter Up, Up, Down, Down, Left, Right


Enter the following codes during game-play

$200, Flash and Spraypaint:
Black, Click Left Thumbstick, R, A, Down, R

100% Completion:
R, Back, X, Down, Left, Right

Infinite Health:
Up, Y, White, Back, A, Left

Complete Mission:
Down, X, A, Back, Black, Left

Unlock Baseball Bat:
X, Left, Down, Down, R, R

Unlock Knife:
Down, Down, Back, Up, Up, White

Unlock Machete:
R, A, Black, Black, Back, Left

Unlock Pipe:
Left, B, Back, Up, R, Right

Infinite Rage:
X, B, Y, Back, A, Left

Infinite Sprint:
Down, X, Left, A, R, Back

Lose the Cops:
Up, Back, A, Y, Y, B


Unlockables

The Warriors:
Complete the first mission

More soldiers for The Warriors:
Complete #2 - 'Real Life Bunch'

The Destroyers:
Complete #3 - 'Payback'

Baseball Furies & Baseball Field Arena:
Complete #4 - 'Blackout'

The Orphans & The Orphanage Area:
Complete #5 - 'Real Heavy Rep'

Hi-Hats & Burner Battle Mini-Game:
Complete #6 - 'Writers Block'

Hurricanes, Broken Arpartments Area & Pool Room Area:
Complete #7 - 'Adios Amigo'

More soldiers for Hi-Hats & Coney Amusement Area:
Complete #8 - 'Encore'

More Soldiers for The Destroyers:
Complete #9 - 'Payin' The Cost'

More Soldiers for The Destroyers & The Shack area:
Complete #10 - 'Destroyed'

Turnbull AC's:
Complete #11 - 'Boy's In Blue'

Seracens, Jones Street Boy's & New Area:
Complete #12 - 'Set Up'

Moonrunners & New Area:
Complete #13 - 'All City'

The Riffs & New Area :
Complete #14 - 'Desperate Dudes'

More Other Soldiers:
Complete #15 - 'No Permits, No Parley'

More Other Soldiers & Rotunda Area:
Complete #16 - 'Home Run'

Punks, Lizzies & Subway Toilets Area:
Complete #17 - 'Friendly Faces'

Rougues:
Complete #18 - 'Come Out And Play'

Eliminators, King of The Hill minigame & Flashback Warriors:
Complete Flashback Mission B - 'The Best'

Savage Huns:
Complete Flashback Mission D - 'Scouts Honour'

More Flashback Warriors/Spray, Movie soldiers, Flash, Knife dealers, Spanish Harlem civillians and all other soldiers:
Beat the game 100%

Unlock Warriors Arcade Machine:
It will appear in your hangout when you complete the game once and beat all of the 'Flashback' missions.

Battle Le Royal Mini-Game:
Complete #A Flashback Mission

King of The Hill Mini-Game:
Complete #B Flashback Mission

Armies Of The Night:
Complete the whole game on any difficulty

Brass Knuckles:
Complete side-mission #1 - 'Beat Up Gangsters on your Turf'

Warriors Hangout:
Complete side-mission #2 - 'Real Life Bunch'

Coney Turf:
Complete side-mission #2 - 'Real Life Bunch'

Steel Toed Shoes:
Complete side-mission #3 - 'Beat Up Gansters on your Turf'

Burner Battle Mini-Game:
Complete side-mission #6 - 'Writers Block'

East Coney Turf:
Complete Side mission - 'How Many Flash Can You Take?'

Increased Flash Capicity:
Complete Side mission - 'How Many Flash Can You Take?'

Knife Dealers:
Complete side-mission - 'Rip-Off Dealers'

Unlock Adelphion As Rumble Character:
Get back the Tiki costume

Unlock Steel Toed Boots:
Beat the Jones Street Boys in Turf Invasion

Unlock Brass Knuckles:
Beat the Hurricanes in Turf Invasion

Unlock Hand Cuffs to Use On Enemies:
Arrest the Coney Stalker

Unlock Keys:
Free Twiggys Contacts

Increased Flash Capacity:
Get a Foam Finger while dosed on flash from Twiggy's store

Recruit Bums:
Complete the 'Feed the bums' Bonus mission.

Play as the Riffs vs The Rogues:
Beat the game

Unlock Arcade Machine:
Clear the game once on 'Normal' or higher difficulty setting and the arcade game 'The Warriors Armies of the Night'. To play the game you need to clear all the Flash Back levels.

Unlock Fury Mode:
Clear the game on 'Hardcore' difficulty setting to play the main game as the Baseball Furies