Unlimited weapons
Complete either character's first scenario in under 2.5 hours with an A or B ranking for the special rocket launcher. Complete either character's second scenario in under 2.5 hours with an A or B ranking for the special gatling gun. Complete either character's second scenario in under 3 hours with an A or B ranking for the special machine gun. The special weapon will appear in the next game after the first chest is opened.

Shotgun or crossbow
When playing as Leon go to the gun shop with the man. He will almost shoot you. After he dies because of the zombies, kill them. Then go up to the dead man and press "Action". You should get a shotgun. If playing as Claire you will get the crossbow.

Rebecca Chambers picture
Walk into the S.T.A.R.S office, go tothe back of the room and click on the desk with the "This desk is trashed someone must of searched it" description. Search the desk fifty times to find a photo of Rebecca Chambers as a basketball player.

Unlimited ammunition
Press [Up]x4, [Right]x4, (L), (R), (L), (R), (C-Right), (C-Left) at the load game screen. The game will return to the main menu to confirm correct code entry. Your weapons will still be able to fire after reaching 0 rounds remaining.

Invincibility
Press [Down]x4, [Left]x4, (L), (R)x2, (L), (C-Up), (C-Down) at the load game screen. The game will return to the main menu to confirm correct code entry. Load or start a new game for invincibility.

Play as Tofu
Press [Up], [Down], [Left], [Right], [Left]x2, [Right]x2, (L), (R), (C-Up), (C-Left), (C-Down), (C-Right) at the load game screen. The game will proceed to the title screen to confirm correct code entry. Alternately, Complete either character's first and second scenarios in less than three hours. Play the game again with the other character, and also complete their first and second scenarios in less than three hours. Play the game a third time and complete either character's first and second scenarios again in less than three hours. Note: The game must saved less than twelve times during each of the six scenarios played and unlimited weapons must not be used. Tofu is a piece of tofu (food) that must reach the second floor of the police station from the sewer with just battles and no puzzles. Tofu can not use any weapons other than a knife.

Note: You can enable the "Unlimited ammunition" and "Invincibility" codes prior to activate this code to play his scenario with those cheats.

Play as Hunk
Press [Up], [Down], [Left], [Right], [Left]x2, [Right]x2, (L), (R), (C-Up), (C-Right), (C-Down), (C-Left) at the load game screen. The game will proceed to the title screen to confirm correct code entry. Alternately, Complete Claire or Leon's second scenario saving less than twelve times with a end time of under two hours and thirty minutes. Hunk is a soldier that must reach the second floor of the police station from the sewer with just battles and no puzzles.

Access to secret room
To get into the room with the fingerprint access, you must get the Red Umbrella Key card and go into the room with the bugs in it. Go to the computer and type in "Nemesis" as a user name. It will take your fingerprint. Go to the fingerprint key pad and put your fingerprint in as the character being Leon or Claire and complete the game. Return to the fingerprint lock as the other character and do the same thing and you can go in. There are some Lickers in a glass container of liquid.

Dead Hunter
Unlock the room in the Lab which requires two people to enter. In the Culture Experiment Room is find a dead Hunter from the first Resident Evil game and a group of strange experiments.

Getting the Precinct Key
Go to the second floor, kill the Licker, and then go to the room with a door with S.T.A.R.S. written on it. Get the diary (green book), get the unicorn medal, talk to your "friend", and go down the stairs back to the fountain in the hall. Stand in front of the fountain and use the unicorn medal.

Regaining the Precinct Key
If you discarded the Precinct Key, you can regain in the room where you put the Red Jewels into the statues. Search the crates on the left side of the statue to find the it. You can also find H. Gun Ammo and an Ink Ribbon in this room.

Getting the machine gun
Play the first scenario and find the door with a small hand pad in the Umbrella Laboratory that requires two people to open. Even though you cannot get in, activate it anyway. Complete the first scenario and start the second. Find this pad again and activate it. The door will unlock and you can find a machine gun in the room.

Getting the gatling gun
Successfully complete the game in two and a half hours or less, you can pick up items (only important things such as keys, card keys and maps recommended) but do not save. The gatling gun is an awesome weapon that shoots very fast and is powerful. The downside is that you cannot aim up or down, and it takes up two spaces on the inventory screen. When you start the next scenario in the slot you used, look in one of your item boxes.