Biohazard Cheats and Codes

This trick only works with Jill, since she is the only one who gets the Grenade Launcher. You must have one of any type of extra shell. Have the Grenade Launcher armed, loaded, and with an extra set of shells in the inventory. Approach an item box and open it. Insert the extra shells in the first slot (which first highlights red). Then, immediately switch them directly with the Grenade Launcher. By doing this, the shells that were originally in the Grenade Launcher were transferred into the box, and the ones in the box are now in the Grenade Launcher, with a number of about 220 to 450. Switch the other shells the same way, and you will not need the pistol, knife, or shotguns for the remainder of the game. Alternately, find an item box and dump your entire inventory into it. Next, place the Grenade Launcher in the upper-left item slot and your Incendiary Rounds in the upper-right item slot. Then, equip the Grenade Launcher. Go back to the item box, highlight the Incendiary Rounds in your inventory, and press A(2). Then, go over to the Incendiary Rounds (which should be in the item box) and press A(2). If done correctly, you should have 240 Incendiary Rounds. After you have completed the Grenade Launcher trick to get more grenades, continue press A, alternating Grenade Ammo. Switch out and it will fill the rest of your inventory with about 200 rounds for each unused space. In the Japanese version of the game, equip the Grenade Launcher with any type of ammunition, then take Flame Rounds from an Item Box. Open the Item Box again and put the Flame Rounds back into it. On the Item Box Inventory screen, highlight the slot with the Flame Rounds and press A. The pointer will jump to the Grenade Launcher slot. Press A to get 456 Flame Rounds. Note: This can also be done with other types of grenade ammunition. -From: tsunami912@yahoo.com

New background and alternate costume

Successfully complete the game with Jill or Chris and save the game. A new background will appear on the main menu. Select the "Once Again" option when playing your completed saved game. You may now choose new difficulty settings for the replay. You will also get a key that will allow the character that completed the game to have a new costume. Enter the room with the large mirror on the second floor of the mansion. Unlock the door in the back. Enter the closet and move all the way to the end of the rack of clothes. A message asking "There is an outfit that fits you perfectly, do you want to put it on?" will appear. Select "Yes" to change your character's clothes. Complete the game again to unlock a second costume.

Samurai Edge weapon

Successfully complete the game with Jill or Chris on the normal difficulty setting with a time less than five hours. Save the game at the end, then start a new game to begin with the Samurai Edge weapon.

Rocket Launcher with infinite ammunition

Successfully complete the game with Jill or Chris with a time less than three hours. Save the game at the end, then start a new game to begin with the Rocket Launcher with infinite ammunition.

Bonus option, costumes, and weapons

Successfully complete the game in "Once Again" mode on the normal difficulty setting with a time less than five hours. This unlocks the "Real Survivor" option (item boxes do not transfer items to each other), the .40 Smith and Wesson gun with infinite ammunition (replaces the combat knife in a new game), and bonus costumes. Additionally, the aiming system will be manual. If the game was completed using Jill, the bonus costume will be her outfit from Resident Evil 3.

Invisible Enemy option

Successfully complete the game two times with Jill or Chris to unlock the "Invisible Enemy" option. All enemies will be transparent in this mode.

One Dangerous Zombie option

Successfully complete the game with both Jill and Chris once to unlock the "One Dangerous Zombie" option.

Special Features option

Successfully complete the game in "Invisible Enemy" mode with a time less than five hours to unlock a "Special Features" option that displays a message from the game developers and a gallery of pre-production costumes.

Alternate Jill scenes

When the game puts you and Barry in the dining room, wait until Barry sees the blood, then run back to the hall where Wesker is located. Wesker will tell you to " Investigate shots if heard". You will then be put back in the dining room. Try to go back in the hall and Barry will say "Cold feet already Jill? That's not like you.". When you try to walk to Barry, a alternate beginning sequence will appear.

Save kerosene

If there is more than one zombie in a room and you plan on killing them, space yourself from them and kill one. Next, kill the second one so it falls directly on the one that was killed. Then, use your Kerosene. Both zombies will be burned. Note: This work on as many zombies you can possibly stack.

Retrieve your defensive knives

After defending yourself against a Zombie with a dagger, blow off his head. The dagger should be back on the ground next to the corpse.

Defeating Black Tiger (big spider)

Use your strongest weapon. If playing as Chris, use the flamethrower then torch the babies. Alternately, use this easier trick that also saves ammunition. When you fight Black Tiger, there is a smaller spider behind it. Just focus on killing the big one, and forget about the babies and the normal spider by getting out of the room. Every spider will disappear when you return.

Defeating Crimson Head Elder (Sir Trevor)

Three blasts from the grenade launcher or six from the shotgun will kill him.

Defeating Lisa Trevor

In the first encounter, you can choose to not fight her as she can kill you in three hits. If you choose to fight, use the shotgun. In the final encounter, push all of the rocks off the cliff. If she approaches you, run away.

Defeating Neptune

Push the electric box in the water and turn the power on to the box.

Defeating Plant 42

Mix up the J-Vot and use it in the water tank to dissolve it.

Getting past the Snake

When you get in the room with the Snake, run to the back of the room, pick up the mask, and run back to the door that you just came through.

Defeating Tyrant

In part one, use the Magnum. In part two, just shoot and wait for the rocket launcher.

Defeating enemies

Cerebreus: If in groups, use the shotgun and take them all out at one time.

Rocket launcher

Finish the game in under three hours without rescuing anyone. If done correctly, a rocket will appear after the credits. Save the game. Then, start the game that was just saved and the rocket launcher with infinite ammunition will be available. Note: The rocket launcher does not shoot well upwards or downwards.

Alternate clothes

Rescue the other two players and finish the game. If done correctly, the phrase "You've got the special key" will appear after the credits. Save the game. Start the game that was just saved. Enter the room with the large mirror on the second floor of the mansion. Unlock the door in the back. Enter the closet and move all the way to the end of the rack of clothes. Then, a message asking "There is an outfit that fits you perfectly, do you want to put it on?" will appear. Now select "Yes" to change your character's clothes.

Reset game

Pause the game and press Start + Select. Then the game will reset and return to the main menu.

Configure game (Japanese version)

Pause the game and press Start + Select. Now game options may be changed before resuming the game.

Change difficulty during game (Japanese version)

Note: The game must have been previously completed on the hard difficulty setting. At the title screen, press R1, L2, R2, L1, X, Triangle, X, Square. If you entered the code correctly, you will hear the sound of a zombie. Now while playing a game, hold R1 + R2 + L1 + L2 and press Select to change the difficulty.