1) Lock Numbers
0426 - Custody Room (The one with a dead guard and also the first save point.

Don't forget to hit the switch on the wall first.)
8159 - Louge weaphon storage locker (The thrashed bar in the 2nd floor of the

facility)
705037 - The room adjacent to the Louge (You need to use a DDK here. Once

you're inside you'll meet a researcher and use the 2 panel keys on the

plaque behind the desk. The letters on panel keys, LEO & SOL, is

actually the lock code. Try writing it on a piece of paper or on a

calculator then read it upside down.)
7248 - Computer room (Opens the gas chamber room.)
1218 - Stabilizer design room (Use this code on the panel the get the upgrade

parts for the shotgun.)
367204 - Forgot which room to use this one. (It is the room where you'll get the

parts for the stabilizer and initializer.)
0367 & 0204 - Stabilizer & Initializer Assembly Room (Use the first code in the

computer terminal & the 2nd one in the thing that looks like a

large vending machine in the corner.)
2) DDK Codes
HEAD

NEWCOMER

LABORATORY

ENERGY

WATERWAY

STABILIZER

DOCTORKIRK
(Notice that the letter of the DDK disk corresponds to the first letters of the

codes. So check the letters that are on the DDKs to know which codes to use.)
3) Registration Numbers
Paul Baker - 58104

Mark Doyle - 57036

Dr. Kirk - 31415
(These reg. nos. are used in conjunction with the F.C. device when writing the

ID card. Paul Baker is the dead researcher in the elevator hall. Try placing the

phone in the office on hold so it will page his beeper. You'll know it's him when

you hear a beeping sound in the elevator hall, but you really don't need to do

this. As for Mark Doyle, I think he's that dead guy near the helipad gate.

Do not forget to get their finger prints.)
4) Gas Combinations
RED -defeats-> GREEN

BLUE -defeats-> ORANGE

GREEN -defeats-> PURPLE
(Use this in the gas chamber room. Sometimes you have to mix the gases to come up

with the right colors.)
5) Bonuses
ARMY & BATTLE COSTUME - Beat the game the first time under 8 hours.

ANCIENT COSTUME - Beat the game the second time under 8 hours.

INFINITE GRANADE BULLETS - Get all 3 endings.

OPERATION WIPEOUT - Beat the game under 4 hours.