Megacheat:
 Enter sackthemamma to get infinite lives, float, walk on water,
 cops are all zombies, you are invincible, people come up 2 you
 and give you points and you get 20,000,000,000 points from
 every person.
 
 Submitted by: badsy
 
 Invincibility (PAL version)
 
 At the main menu, press Square, Triangle, Circle, X(2), Circle,
 Triangle, Square.
 
 Game music
 
 Play tracks two and higher of the game disc in an audio CD player to
 hear music from the game.
 
 Cheat Codes
 
 Enter one of the following codes as a player name. Note: All codes in
 the game may be used in combinations. Enter and accept a code, then
 go to "Rename" and enter another code. Your character can also be
 renamed to any desired name after the last code is entered.
 
 Codes with multiple features
 
 Enter "BSTARD" as a player name for all levels, all weapons, infinite
 ammunition, ninety-nine lives, armor, "Get Out Of Jail Free" card,
 display coordinate, maximum wanted level, 5x multiplier.
 
 Enter "THESHIT" as a player name for all levels, all weapons, infinite
 ammunition, ninety-nine lives, armor, "Get Out Of Jail Free" card, 5x
 multiplier.
 
 Enter "MADEMAN" as a player name for all levels, all weapons, infinite
 ammunition, armor, "Get Out Of Jail Free" card.
 
 Enter "GROOVY" as a player name for all weapons, infinite ammunition,
 armor, "Get Out Of Jail Free" card.
 
 Enter "PECKINPAH" as a player name for all weapons, armor, "Get Out
 of Jail Free" card.
 
 Enter "HANGTHEDJ" as a player name for all levels, all weapons money.
 
 Level select
 
 Enter "SKYBABIES" as a player name to choose any level up to
 "Mandarin Mayhem". 
 
 All levels
 
 Enter "TURF" or "INGLORIOUS" as a player name.
 
 All cities (1 and 2)
 
 Enter "CAPRICE" as a player name.
 
 Liberty City (1 and 2)
 
 Enter "FECK" as a player name.
 
 Liberty City (1 and 2) and San Andreas City levels
 
 Enter "TVTAN" as a player name.
 
 All cities (1 and 2), except Vice City (1 only)
 
 Enter "URGE" as a player name.
 
 Ninety-nine lives
 
 Enter "SATANLIVES" as a player name.
 
 9,999,990 points
 
 Enter "WEYHEY" as a player name.
 
 5x multiplier
 
 Enter "EXCREMENT" as a player name.
 
 Maximum wanted level
 
 Enter "EATTHIS" as a player name to set the wanted level to four.
 
 Display coordinates
 
 Enter "BLOWME" as a player name.
 
 No police
 
 Enter "CHUFF" as a player name.
 
 Hints
 
 Avoid pedestrians
 
 Beep the horn when driving near people.
 
 Crawl under fences
 
 Take a lorry or an other vehicle that you can crawl under and park it
 lengthwise, facing a fence. Then, go to the back and press R1 to crawl
 underneath. Note: Make sure that you can get back out before trying
 this. 
 
 Disappearing man
 
 Find a motorbike, then select punch as a weapon. Hold Circle and get
 on the bike. Press Circle, then crash into another vehicle so you can
 fall off. Your character should keep punching. Try to get back on and
 your character will jump. Get in a fast car and crash into the bike.
 Your character will fly off the bike, allowing you to control him and
 the car simultaneously. 
 
 Change clothes
 
 Go to a railway station and walk near the closest wall. Stand still
 and shoot the wall with the rocket launcher to set your character on
 fire. Then walk on the railway line to electrocute your character.
 When you return, your character should be dressed in the clothes from
 the PC version of the game. Note: The clothes change back when your
 character enters a car. 
 
  Game Shark Codez:
 
           
  Reverse Joker Command                   
  D002C440 ????
           
  Infinite Lives                          
  8002C446 0009
           
  Infinite Pistol Ammo                    
  8002C450 6300
           
  Infinite Machinegun/Rocket Ammo         
  8002C452 6363
           
  Infinite Flamethrower Ammo              
  8002C454 0063
           
  Infinite Armor                          
  8002C438 0063
           
  No Cops                                 
  80026D84 2000
           
  "Get Out Of Jail Free" Card             
  8002c45e0001 
           
  Extra Bonus Points                      
  8002C442 0063
           
  65535 Points Score                      
  D002C2F0 0000
  8002C2F0 FFFF
           
  5 Million Points Score                  
  D002C2F0 0000
  8002C2F0 4FFF
  D002C2F2 0000
  8002C2F2 004C
           
  Less Traffic                            
  8002C3A4 05BD
           
  Unlock Liberty City Part 2              
  80026D20 0001
           
  Unlock San Andreas Part 1               
  80026D24 0001
           
  Unlock San Andreas Part 2               
  80026D28 0001
           
  Unlock Vice City Part 1                 
  80026D2C 0001
           
  Unlock Vice City Part 2                 
  80026D30 0001
           
  Super Human Whacked & Crazy Mode [Note] 
  8002C932 6401
  8002C954 0002
  8002C976 00FF
  D002C440 0100
  8002C932 0000
           
 Note: This code is useful, but has a lot of glitches. Some missions
 may glitch, when they do just hit the "Kill" button and the board
 should reset. Whenever you die, hold Left or Right and tap the car
 jacking button; Run + Fire to resurrection your dead body. You can
 walk on water, and when you do you cannot get busted by the cops. You
 also are immune to electric shock and fire. The default "Kill" button
 is set on the brake button; R1. If you want to stop the vehicle just
 tap the brake button, do not hold it down.