:: video games cheat and cheat codes ::                                            

Playstation - Zeiram Zone cheats

Unlock extra hard mode:
Hold Left for 3 seconds at the main menu, then press Right. 
Then, press Circle, Triangle. If the code is accepted, the "Option" 
selection will change to red. Then, go to the option menu to select 
the extra hard difficulty level.

Play as the enemy
Press Right, Down, Down/Right, Down, Down/Left, Left, Triangle at the 
main menu. If the code is accepted, the "Game Start" option will change 
to red. After that, choose "Game Start" option. In this menu you can 
select the bosses and some enemies for play.

Unlock Versus mode option:
Press Down, Circle, Right, Square, Up, X, Left, Triangle at the main 
menu. A sound will confirm the correct code entry.

Zeiram Zone Game Shark Codes:
                    
Unlimited Time   
800B1308 1F2B

Unlimited Health 
800B0556 015C