Enter the following codes during game-play

100% Completion:
L1, Select, Square, Down, L2, Right

Complete Current Mission:
Down, Square, X, Select, R1, Left

Infinite Health:
Up, Triangle, L3, Select, X, L2

Lose Cops:
Up, Select, X, Triangle, Triangle, Square

Unlock $200 Dollars, 3 pieces of Flash and some Spray Cans:
R1, R2, L1, X, Down, L1

Unlock Baseball Bat:
Square, R2, Down, Down, L1, L1

Unlock Infinite Rage:
Square, Circle, Triangle, Select, X, Left

Infinite Sprint:
Down, Square, Left, X, L1, Select

Unlock Knife:
Down, Down, Select, Up, Up, L3

Unlock Machete:
L1, X, R1, R1, Select, R2

Unlock Pipe:
R2, Circle, Select, Up, L1, Right

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

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