S Rank: Beat the game in 1:30. Use only One herb. don't use any weapon upgrades, no special weapons (like the R. Launcer) and don't pick a weapon up more than one time, like if you pick up the shot gun from the weapon owner, don't go and get it on the police station.
A Rank: Beat the game under 3:00 and don't use any first aid, no special weapons.
B Rank: Just beat the game under 3:00
C Rank: Finish the game in 5 to 7 hours
D Rank: Beat the game over 7 hours
Unlock TOFU - Start a game on normal mode with Claire A. Beat it and then beat Leon B. Then beat Claire A. Then beat Leon B. Then beat Caire A. Then beat Leon B. Make sure you unlock HUNK on the way, and get A Rankings with each scenario.
Unlock HUNK - Beat the A Scenario with an A Rank. Then beat the B Scenario with a B Rank.
Unlock TOFU Start a game on normal mode with Leon A. Beat it and then beat Claire B. Then beat Leon A. Then beat Claire B. Then beat Leon A. Then beat Claire B. Make sure you unlock HUNK on the way, and get A Rankings with each scenario.
Extreme Battle Mode AND HUNK scenarios - Beat Leon A, then beat Claire B. Get A's on both scenarios.
Extreme Battle Mode AND HUNK scenarios - Beat Claire A, then beat Leon B. Get A's on both scenarios.
Before you use the custom parts on the VP70(Handgun), Desert Eagle(Magnum) or Shotgun use the remaing ammo in the clip/breech. When you use the custom parts to upgrade the gun it will automatically be fully loaded. This may seem like a small amount of ammo but can go a long way in the harder difficuties were ammo is rarer.
Start an A Scenario with either Leon or Claire. Start the game, but DON'T COLLECT A SINGLE ITEM. Don't collect the weapon in the Gun Shop, any ammo. Go to the Police Station and down the stairs in the courtyard. A zombified Brad will be there. Kill him one way or another (by collect ammo in the RPD or stabbing him). Collect his 'Special Key' and take it to the RPD Darkroom. Open the locked by the door and you get new costumes...
From the starting point, clear a path through the zombies and make your way to the gun shop. There, you'll find two boxes of handgun ammunition. Once the zombies break through the glass, you can either flee in terror or kill the zombies and get the shop owner's shotgun.
Once in the alley behind the shop, make your way to the back of the van and collect the handgun rounds. The zombies will break through the gate; take care of them and go to the door on the other side of the basketball court. From this point, run by the zombies and head to the bus. Once inside, take the handgun bullets out of the bag and take care of the flesh eaters. Head for the front door of the bus.
From here, it's only a short distance to the police station, but beware - many of the undead are waiting.
In the main hall of the police station, pick up the handgun bullets and ink ribbon. You can save here at the typewriter. Go through the unlocked door and speak with the wounded officer. He will give you a key card. Use the key card on the computer in the main hall where you first entered the station house. It unlocks the other door. Now go through it, and you'll find a police memo. Head through the door next to the window. In the hallway you will come across an officer who has had a slight problem with his head. If you double-check him you will find that he has some handgun bullets that you might need. Further down the hall you'll come across a pool of blood. Beware of the creature that drops down. Simply aim low and shoot until it doesn't move anymore. Pick up the green herbs to heal yourself now or later. Enter the door at the end of the hall. Go down the hall and through the double doors to the right. To your immediate left on a desk you will find the Operation Report file. Head to the small room to the left of the chalkboard. There, go to the fireplace and ignite the fire with the lighter to reveal the first red jewel. Take it and head out the door and continue down the hallway. When you reach the room with the zombies, take care of them quickly and head up the stairs to the left. Now head down the hall until you reach the statue with the second red jewel in its hand. Push the smaller gray statue over the square on the floor to the left of the big statue. Push the reddish statue over the square on the right side of the statue. The red jewel will be released and is yours for the taking. Head through the door to the right of the statue and down the hallway. Enter the first door, which is the S.T.A.R.S. office. On Chris's desk you will find his diary, and beneath that you will find the Unicorn Medal. Get the shotgun out of the locker and exit the room.
Take the Unicorn Medal to the fountain in the main hall of the police station, where you first entered. Place the Unicorn Medal in the front of the fountain. This will release the spade key. Go back into the door from which you came and down the hall, and unlock the door to the file room. There, you'll find the Patrol Report, ink ribbon, and a crank. To get the crank, push the step stool to the cabinet, climb up, and get it. Exit the room and head up to the second floorGo down the hall past the statues and enter the door. Make your way to the library. From there, head up the stairs to the right and down the walkway. You will fall through the floor. Look at the picture clue and push the red button. Approach the face of the bookshelves and push the red switches to make the bookcases match the picture clue. Once in the correct position, the picture will fall away and reveal the bishop plug. Take the plug and exit the double doors. Then make your way to the other side of the balcony, past the zombies, and through the door on the far side. Enter the room and pick up the desk key, ink ribbon, and the Chief Secretary's Diary A. Then exit through the opposite door and head down the hallway. Exit through the door straight ahead.
Once outside go down the stairs and enter the door. In the hallway, enter the open doorway on the left. Enter the small room with the open door to the right. Inside you will find green herbs behind a desk and a safe in front. To open the safe, use the combo 2236. Inside you will find acid rounds and the police station map. Exit double doors at far end of room.
Make your way to the burning helicopter outside the police station. Go down the stairs and enter the door around the corner, where you'll find a save point, bow darts, and a valve handle. With valve handle in hand, return to the burning helicopter. Go behind the open fence next to the door and use the valve handle on the water-pressure valve. Water will quench the flames and in the smoke you will find handgun bullets. Head back to hallway inside the house where the helicopter was protruding in. Now with the flames out you can enter the door on the right. In this room you will find the diamond key and two stone busts protruding out of the wall. Place a red jewel in each one of the busts. This will reveal the king plug. Take the plug and head back to the first floor. Use the diamond key to enter the evidence room on the first floor to the right of the main staircase. Dispatch the zombies quickly, and then search for the film and shotgun shells. Exit through the other door into the room where the officer gave you the key card at the beginning. This time he won't be so nice. On the desk in the room where you find him will be the heart key. If you look around the main room you will find some handgun bullets in the locker and a memo to Leon on the desk. When you're done poking around, head to the interrogation room that you can open with the diamond key. Once inside you'll find the rook plug and cord. Make your way out of the room quickly....
Now go back to the room where you got the memo to Leon. From there, go down the short hallway to the door you need the heart key for. Use it and discard. Now head for the stairs, and look out for the dogs. Take your first right and run to the first door on your right. Inside, pick up the green herbs and police B1 map, then head for the reserve power control panel. Once there press up, down, up, down, up. This will activate the key card lock door. Now head back out, take a right, and head to the door at the end of the hallway marked parking. You will now meet up with Ada Wong. Help Ada move the paddy wagon out of the way. Follow her in and find the cell that Ben is in. After a brief conversation, look to the shelf on the right for the manhole opener. Head to the left of the kennels and look for the manhole. Use the manhole opener and head down. Once there you will become Ada. Beware of the dogs!
You want to take the first right and head straight for the door. Inside the room, look to the right to find the sewage-disposal map hanging on the wall. Hop down to the left of the control panel and push the boxes in place so they make a bridge. Once they are in place, hop back up to the water-level control switch and push the button. The water will raise the boxes and you can walk across and get the club key. Now head back to the door on the right, where some grenade rounds are waiting, and head back to where you first became Ada. She will automatically give Leon the items. Once you are yourself again, head back up the stairs, open the door using the diamond key, and discard it. Inside the room, you'll acquire the Magnum, the night watchman's diary, and ammo. Now go into the only room on the first-floor map you haven't been in: the middle room on the upper right side. Use the club key to enter and discard. With lighter in hand, ignite the furnace on the far side of the room. Then turn the faucets on the wall in this order: 12, 13, and 11. This will make the golden cogwheel fall out of the painting. Take it and head to the third floor via the library on the second floor.Enter the only other door on the third floor and use the crank in the square hole in the wall to lower a staircase. Head up the staircase and use the golden cogwheel on the gears, then press the button to open the door to the right. Behind the door you will find the knight plug. Go down the shaft and pick up the mail to the chief. Keep going and prepare for a fierce fight with the hideous monster waiting for you. Once he's defeated, make your way to the door at which you need to place all of the chess piece plugs to enter. From there you can find the room that contains the ink ribbon, sewer manager file, and save point.
When you exit, you'll run into Ada again. After a brief conversation, you will be shot and become Ada again. Follow the woman up the ladder and on into the vent shaft. After you meet up with her, head down the ladder. Here you'll once again become Leon. Go down the hallway and find the wolf coin. Follow the sewer until you reach the equipment. Use the valve handle on the bridge-lowering mechanism. Once across and on the other side, use it again to raise the bridge back up (trust me). Head down the corridor until the alligator attacks. Then run back until you get to the red light on the left. Push the button to release the gas canister. Let the alligator take the canister into his mouth, then shoot it! Head down to the door in the direction the alligator came from. Head up the ladder, go to the left, and get the eagle medal and sewer manager's diary. Head to the right and use the valve handle on the lighted machine to the left of the spinning fan. This will allow you to climb up the ladder and through the airshaft. Follow the sewer until you reach the waterfall and use both of the medals on the water-flow control panel to the right. This will stop the flow of water and allow you access to the door behind. Make your way to the right side of the trolley and turn on the power switch on the control panel. This will activate the trolley. Enter it, but beware of the monster. When he attacks, shoot up at his arms. Once on the other side, exit, and to the immediate left, use the lighter on the flare signal to make the weapon-box key gleam in the light. Pick up the key and head for the door.
Go down the walkway until you reach some zombies and the first intersection. Go to the left, and search on the dead guy for shotgun parts, which can be combined with the shotgun to make a super shotgun. Head to the right and up the ladder. In the room above, you'll find ink ribbons, Magnum bullets, shotgun rounds, and a save point. Once all of the items have been collected, head out the door. Go into the tractor housing sitting on the platform. Inside, you'll find more ammo and the key to activate the platform. Take the key out to the control panel in front of the tractor housing, use it, and press the button to activate. Once inside, William, the creature (you can't miss him), will attack. Exit the tractor and get ready for battle! Once William is defeated, go back in the tractor housing. After Ada is done talking, explore the room for various items, head to the east area, and go through the frozen door. Get the fuse case off the cart and use it at table to have it put together by the mechanical arm. Take the fuse to the junction in between the east and west area, and use it. Head to the west area and go in the door to the right. Get the security memo and temporary-user note. Go to the computer and turn on the anti-B.O.W. sprinklers. Shoot the plant coming out of the ventilation shaft with flame rounds or the flamethrower found in the locker. Climb through the vent shaft and pick up the ammo and ink ribbon.
Now go to open the door to the right, but beware of the fierce plant creatures waiting behind the door. Once they have been dealt with, head through the door and destroy one more. Then head down the ladder by the big plant. Enter the door and search beneath all of the monitors for the map. Go through the door and use the weapon-box key to get the Magnum parts. These can be combined to make a custom Magnum. Go in and deal with the zombies and pick up the red lab card. Take it and head to the door with the huge eggs out front. Use the card to enter, and kill the giant moth. Then move over to the computer and clear off the keyboard by killing all of the little creatures on it.
Use the computer and enter in the password "guest." Then head back up to the east area and use the key card on the door. Enter and kill the zombies and turn on the light switch. Pick up the first-aid spray, Magnum rounds, and most importantly the MO disk. When you go outside you'll run into Annette and receive the G-virus. Head to the large door to use the MO disk. Ada will confront you. After this, continue on your way to the MO disk door. Enter and prepare for the final battle with William. Just make sure you have a lot of herbs and/or first-aid spray and ammo!
During gameplay, go to the item selection screen. Press the following code depending on which version of the game you own. If the code is done correctly, the amount of ammo in each weapon will show an infinity symbol.
JAPANESE: UP, UP, DOWN, DOWN, LEFT, RIGHT, R Trigger
AMERICAN: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, R Trigger
To unlock the Gattling Gun, beat either character's B game in under 3 hours with an A ranking. You will see a special display after you beat the game telling you you got it. It will be in the item box in the next new game.
To get the SMG with unlimited ammo, beat either character's B game in under 3 hours with either an A or B ranking. You will see a special display telling you that you have unlocked it. It will be in the item box in the next game.