These are the pure Hex Codes for Resident Evil. To hack Resident
 Evil you must open your savedat1.dat file in your saves directory.
 Find line 00000320 and search for all the 0000 and then add these
 for your cheats:
  01FF - Combat Knife
  02FF - Beretta w/127
  03FF - Shotgun w/127
  04FF - DumDum Colt
  05FF - Colt Python
  06FF - FlameThrower
  07FF - Bazooka w/127 Acid
  08FF - Bazooka w/127 Explosive
  09FF - Bazooka w/127 Flame
  0AFF - Rocket Launcher
  0BFF - Clip w/255
  0CFF - Shells w/255
  0DFF - DumDum Rounds
  0EFF - Magnum Rounds
  0FFF - FlameThrower Fuel w/255
  10FF - Explosive Rounds w/255
  11FF - Acid Rounds w/255
  12FF - Flame Rounds w/255
  13FF - Empty Bottle
  14FF - Water
  15FF - Umb No. 2
  16FF - Umb No. 4
  17FF - Umb No. 7
  18FF - Umb No. 13
  19FF - Yellow 6
  1AFF - NP-003
  1BFF - V-Jolt
  1CFF - Broken Shotgun
  1DFF - Square Crank
  1EFF - Hex Crank
  1FFF - Wood Emblem
  20FF - Gold Emblem
  21FF - Blue Jewel
  22FF - Red Jewel
  23FF - Music Notes
  24FF - Wolf Medal
  25FF - Eagle Medal
  26FF - Chemical
  27FF - Battery
  28FF - MO Disk
  29FF - Wind Crest
  2AFF - Flare
  2BFF - Slides
  2CFF - Moon Crest
  2DFF - Star Crest
  2EFF - Sun Crest
  2FFF - Ink Ribbon w/255
  30FF - Lighter
  31FF - Lock Pick
  32FF - Nameless (Can of Oil)
  33FF - Sword Key
  34FF - Armor Key
  35FF - Sheild Key
  36FF - Helmet Key
  37FF - Lab Key (1)
  38FF - Special Key
  39FF - Dorm Key (002)
  3AFF - Dorm Key (003)
  3BFF - C. Room Key
  3CFF - Lab Key (2)
  3DFF - Small Key
  3EFF - Red Book
  3FFF - Doom Book (2)
  40FF - Doom Book (1)
  41FF - F-Aid Spray
  42FF - Serum
  43FF - Red Herb
  44FF - Green Herb
  45FF - Blue Herb
  46FF - Mixed (Red+Green)
  47FF - Mixed (2 Green)
  38FF - Mixed (Blue + Green)
  49FF - Mixed (All)
  4AFF - Mixed (Silver Color)
  4BFF - Mixed (Bright Blue-Green)
  6FFF - Uzi w/ Infinity
  70FF - Mini Mi w/ Infinity

 Sweet Jill Cheat

 Start the game as Jill save the game in the first slot and edit it with
 your favorite hex editor.
 Move at offset 032C in the file (the first slot free after you get the
 3 ink ribbons) and enter two bytes: 38 01. This gives you the closet
 key.
 Exit and reload the saved game. Go straight in the closet (from the main
 room of the mansion take the narrow door on the right wing, enter the
 room with the mirror, then proceed in the corridor, open the door and
 enter the room with the large mirror: right to the mirrors there's a
 door; now you can open it with this key).
 Go to the right end of the room and search for the suits. Jill will change
 her outfit! Now she's really gorgeous! Have fun.

 ---

 Kill the snake and not be poisoned

 When you get to the guy poisoned by the snake he will ask you to get him
 the antidote. You go get the antidote, you take it and you leave it in
 the chest. You go and look for other clues and after a while you go to
 the poisoned guy and you find him dead. You take the key. You take from
 the chest munitions & weapons, some green plants and the antidote. You
 kill the snake and after you go out of the room you use the antidote.

 Kill Chris when you have control of Rebecca

 After the snake poisons Chris you get out of the room and get control of
 Rebecca. You go whit Rebecca and don't get Chris the antidote (walk
 around the house) and after a while return to Chris.

 Additional hints by BoBo and Paul