In Game Cheats
     Hold   L1&R1&L2&R2   during   gameplay   then  press  the  button
combination. Do the same thing to turn it off.

Cheat code:                                     Effect:

Up, Down, Left, Right, Right, Left, Down, Up    Invulnerability

Triangle, Triangle, Down, Down                  Infinite Weapons

X, Triangle, X, Triangle                        Mega Guns

X, X, Up, Up                                    Killer Weapons 
                                                (Super Damage)
                                                
Left, Left, Up, Down, Left, Right               Radial Blast

Triangle, X, Square, Circle                     Trade Weapons for Health


Twisted Metal: Lost Unlockables
     Successfully   completing   Twisted  Metal:  Lost  under  certain
difficulty  levels  will  unlock secret characters and a secret level.
The Port Of Death is not playable in Story mode.

     ***12-Pac,  Gold  Tooth, and the Port Of Death are not selectable
in the Twisted Metal: Head On portion of the game.***

Unlockable:     How to Unlock:
12-Pac          Successfully complete Story mode 
                under the Medium difficulty setting.
                
Gold Tooth      Successfully complete Story mode 
                under the Hard diificulty setting.

Port Of Death   Successfully complete Story mode 
                under the Medium difficulty setting.


Hidden characters.
     To  unlock the following characters, complete the Bonus Mini-Game
in the corresponding level.

Unlockable:     How to Unlock:

Mr. Slam        Los Angeles

Crimson Fury    Monaco

Hammerhead      Tokyo

ATV             Beat Cousin Eddy in Story Mode

Axel            Beat Russia Mini Game

Cousin Eddy     Beat Cousin Eddy in Story Mode

Dark Tooth      Complete Story Mode with any character


Unlockable Levels

Unlockable:      How to Unlock

Transylvania     Beat Transylvania in Story Mode

Transylvania 
Deathmatch       Beat Transylvania's Minigame