The Warriors

Enter one of the following codes while playing the game:

Get knife - Press Down, Down, Select, Up, Up, L
Get bat - Press Square, R, Down, Down, L, L
Get unbreakable bat - Press L, L, Circle, Up, Circle, Select
Get brass knuckles - Press Circle, Circle, Circle, L, Select, Triangle
Get pipe - Press R, Circle, Select, Up, L, Right
Get machete - Press L, X, R, R, Select, R
Upgrade Flashhead - Press Down, Left, Up, Up, Square, Right
Upgrade bum advice - Press Circle, Circle, Down, R, L, Circle
Upgrade hobo allies - Press R, R, L, R, L, Up
Upgrade Flash capacity - Press L, X, R, L, L, Circle
Finish current mission - Press Down, Square, X, Select, R, Left
100% completion in story mode - Press L, Select, Square, Down, L, Right
Cuff key drops - Press Left, X, X, R, L, Down
Cuff drops - Press Up, X, Up, Select, L, L -
Uncuff self - Press Triangle, Triangle, Triangle, Select, Triangle, R
Upgrade combat stamina - Press X, L, Down, Square, Up, X
Unlimited health - Press Up, Triangle, R, Select, X, L
Unlimited sprint - Press Down, Square, Left, X, L, Select
Unlimited rage - Press Square, Circle, Triangle, Select, X, Left
All weapon dealers unlocked - Press Right, R, Circle, X, Select, Square
Armies Of The Night mini-game 99 credits - Press Up, Up, Down, Down, Left, Right

Non tested cheats:
200 Bones, 3 Flash, and Cans - Press R, R, L, X, Down, L
Upgrade sprint stamina - Press L, Select, Select, Select, Select, Triangle
Lose police - Press Up, Select, X, Triangle, Triangle, Circle
Get Molotov cocktail - Press Right, Select, Circle, Left, Circle, Square
Get steel-toe boots - Press R, R, R, L, L, L
Disable HUD - Press Select, Square, Left, Square, R, R
All items and 200 - Press R, R, L, X, Down, L -