Doom :
Pause before entering codes and unpause after entering them.
Map all lines:
Triangle, Triangle, L2, R2, L2, R2, R1, Square
Map all things:
Triangle, Triangle, L2, R2, L2, R2, R1, Circle
Invincibility:
Down, L2, Square, R1, Right, L1, Left, Circle
All Weapons:
Square, Triangle, L1, Up, Down, R2, Left, Left
All Weapons & Ammo:
X, Triangle, L1, Up, Down, R2, Left, Left
Level Warp:
Right, Left, R2, R1, Triangle, L1, Circle, X
X-Ray no clipping:
L1, R2, L2, R1, Right, Triangle, X, Right
Level (Fortress of Mystery) password: BBBBBBB666
Level (Military Base) password: 3P67ZNBQJG
Level (Marshes) password: JCGDNFL555
Level (The Mansion) password: BXXBXXB778 or WCY28SFGSQ
Level (Club Doom) password: JCGDNFL556 or WWY28SF
RESTART LEVEL AFTER DYING:
When starting a new level, be sure to enter a level password. When you die, press the Start button to pause the game. Then press Select to access an Options Menu. Moce to the Password option and press the X button. You'll see a password, now press X again and you'll begin on the same level with the items you had before
Duke Nukem A time To Kill :
Enter one of the following codes while the game is paused:
Level Select:
Press Down(9), Up {See Note Below} Note: After entering this code, exit the game. Then at the bottom of the main menu there will be a new option called "Time To Kill". Select this new option, then press Left or Right to choose a level and press X to go to the level. Select Powered-Up Weapons:
Press Right(2), Left, Right(2), Left, Right(2), Left
All Weapons:
Press L1, L2, Up, L1, L2, Down, R1, Right, R2, Left
All Items:
Press R1(5), L2(5)
All Keys:
Press Up, Right, Up, Left, Down, Up, Right, Left, Right, Down
Invincibility:
Press L2, R1, L1, R2, Up, Down, Up, Down, Select(2)
Temporary Invincibility:
Press R1, L2, L1, L2, R1, L1, R1, L2, L1, L2
Unlimited continues:
Pause game play and press Left, Right, Up, Left, Right, Down, Left, Right, L1, R1.
Powered-up weapons:
Pause game play and press R1, R2, L2, L1, R1, R2, L2, L1, Select(2).
Invisibility:
Press L1, R1, L1, R1, L1, R1, L1, R1, L1, R1
Infinite Ammo:
Press [Left, Right, Left, Right, Select] twice
Double Damage:
Press L2, R2, L2, R2, L2, R2, L2, R2, L2, R2
Big Head Duke:
Press R1(9), Up
Small Head Duke:
Press R1(9), Down
Big Head Opponents:
Press R1(9), Left
Small Head Opponents:
Press R1(9), Right
Beat the Game:
While playing hold L2 + R2 then press Square, Triangle, Circle, Circle, Start
View Rogue Trip FMV sequence:
At the GT Interactive logo during the opening sequence, press L1 + L2 + R1 + R2
Introduction sequence:
Pause game play and press Select, Up(9), Select, L1.
Victory sequence:
Pause game play and press Select, Up(9), Select, L2.
Kilt sequence:
Pause game play and press Select, Up(9), Select, R2
View credits:
Pause game play and press Select, Up(9), Select, R1
Duke Nukem2 Total Meltdown:
Super kick:
Hold L1 + L2 + R1 + R2 and press Square during game play.
Energy refill:
Destroy any water source, including fountains, fire hydrants, and toilets. Stand in the water and hold the button configured as Action to slowly restore energy. Alternately, stand in front of a toilet or urinal and press Action
Driver:
Cheat codes:
Enter these codes at the main menu to unlock the cheat at the cheat screen.
Invincible:
L2, L2, R2, R2, L2, R2, L2, L1, R2, R1, L2, L1, L1
No police:
L1, L2, R1, R1, R1, R1, L2, L2, R1, R1, L1, L1, R2.
Rear wheel steering:
R1, R1, R1, R2, L2, R1, R2, L2, L1, R2, R1, L2, L1.
Upside-down screen:
R2, R2, R1, L2, L1, R2, L2, L1, R2, R2, L2, R2, L1.
View credits:
L1, L2, R1, R2, L1, R1, R2, L2, R1, R2, L1, L2, R1.
Mini cars:
R1, R2, R1, R2, L1, L2, R1, R2, L1, R1, L2, L2, L2.
Long suspension:
R2, L2, R1, R2, L2, L1, R2, R2, L2, L2, L1, R2, R1.
Dead in the water:
Big Waves, God Mode and more- Enter the following codes at the Main Menu screen. You will hear a chicken after each code you entered correctly.
All Tracks Are Open: Simultaneously press O and Square, press L2, L2, R1, L1.
Big Waves: Simultaneously press O and Square, press R2, L1, R1, R1.
Chicken Mode: Simultaneously press O and Square, press R1, R1, R2, L2.
God Mode: Simultaneously press O and Square, press R2, L2, R1, R2.
Level 2 Boats: Simultaneously press O and Square, press R2, R1, R1, L1.
Level 3 Boats: Simultaneously press O and Square, press L1, R2, L2, L1.
RC Boat Mode: Simultaneously press O and Square, press L1, L1, L2, L1.
Unlimited Missiles: Simultaneously press O and Square, press L1, R1, L1, L2.
Unlimited Special Attacks: Simultaneously press O and Square, press R1, L1, L2, L2.
Unlimited Turbo: Simultaneously press O and Square, press L2, R2, L2, R1.
Dino Crisis:
Extra Games- Finish the game in less than five hours. If you do, a screen will appear with a message about a special mission. Save the game data to a memory card. Start a new game with the saved data, and you'll be able to play two extra games: Operation Dr. Kirk and Operation Wipeout.
Die Hard Trilogy 2: Viva Los Vegas:
Level Select- At the main menu, press L1, L1, O, O, Square, Square. At the Debug menu, choose Direct Level Access, then choose a game mode, then choose a level.
Auto-Reload, Slow Motion and more- Pause the game and press any of the following button combinations to activate these cheats. If you entered the code correctly, the top of the Pause menu will read "Cheat Enabled." Enter the code again to disable the cheat. The Auto-Reload and Slow-Motion cheats can only be used in Gun mode. The other cheats can be used only in 3rd person mode.
Auto-Reload: Press O, O, Triangle, Triangle, Square, Square.
Big Heads: Press R1, R1, L1, L1, Triangle, Triangle.
Exploding Heads: Press Square, Square, O, O, R1, R1.
First-Person View: Press O, O, Triangle, Triangle, Square, Square.
Skeleton: Press O, Square, Triangle, Triangle, Square, O.
Slow-Motion: Press Triangle, L1, Triangle, L1, Triangle, L1.
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