Zeiram Zone Cheats (PlayStation)

At the main menu, press Down, Circle, Right, Square, Up, X, Left, Triangle. If you entered
the code correctly, you will hear a sound. Then a versus mode option will be available.

At the main menu, press Right, Down, Down/Right, Down, Down/Left, Left, Triangle. If you
entered the code correctly, the "Game Start" option will turn red. Then, select "Game
Start" to access a menu that will allow all bosses and some enemies to be selected for
game play.

At the main menu, hold Left for three seconds, then press Right. Next, press Circle,
Triangle. If you entered the code correctly, the "Option" selection will turn red. Then,
enter the option menu to change the difficulty setting to extra hard.