Successfully complete and save the game on the medium difficulty setting to unlock the "Game Speed", "Blast Force", "One Hit Kill" and "Weapons Stay" options for multi-player mode.

Hard difficulty bonus

Successfully complete and save the game on the hard difficulty setting to unlock the "Unlimited Ammo", "All weapons", "Game Speed", "Blast Force", "One Hit Kill" and "Weapons Stay" options for multi-player mode.

Game Shark Codes

Reverse Joker Command P1	D00C7DD0 ????
Player 1 Codes
Infinite Health	800CBDA0 0064
Have All Weapons	800C7F38 0FFF
Infinite Armor	800C7F1E 0064
Infinite Shotgun & Super Shotgun Ammo	800C7F3C 0064
Infinite Machine Gun & Chaingun Ammo	800C7F3E 0064
Infinite Grenades & Grenade Launcher Ammo	800C7F40 0064
Infinite Rocket Launcher Ammo	800C7F42 0064
Infinite Hyper Blaster & BFG Ammo	800C7F44 0064
Infinite Rail Gun Ammo	800C7F46 0064
Super Jump (Press Square)	D00C7DD0 8000 800CBD86 FEC7

Back To PlayStation Index

A middle aged woman stopped at the local grocery store each day for
months, she always bought just one large can of dog food. One day the
grocery clerk ask the woman what kind of dog she had? she replied, I
don't have a dog, my husband eats this for his lunch each day and he
likes it.

The clerk said, madam this is not fit for human consumption,
it could make him sick, maybe even kill him. The woman purchased the
dog food and left.

This continued daly for months, then she stopped coming into
the store. Several week later she stopped in and bought a loaf of
bread, the clerk ask if she wanted any dog food, she replied,
no, my husband passed away several weeks ago. The clerk said I tried to
warn you, that dog food could kill your husband. The woman said, OH,
the dog food had nothing to do with it, he was crossing the road and
stopped to lick his ass, and was hit by a car.