What is "omake", you ask? Omake is a term used mostly in Japanese productions such as anime and videogames that basically stands for extra or hidden content. Here you can find some extra material reguarding the SNATCHER videogame to make your gaming experience that much more enjoyable.
Programmer Information
Select the "Load I.D. file" option on the Jordan computer, then enter one of the following names to view a profile from the corresponding Konami employee.

ADACHI
AKAMURA
CHRISTIAN
FUJIO
FURUKAWA
HARUKI
HAYASAKA
IMAI
INAMURA
INOUE
JEREMY
JONATHAN
KASAI
KATHLEEN
KATHY
KEVIN
KIMBERLEYKIRITA
KOJIMA
KUSHIBUCHI
MARK
MARLYSE
MATSUHANA
MICHAEL
MIKE
MORI
MURAOKA
NOSE
OOTA
OTANI
PETER
SAITOU
SASAKI
SINOHARA
TOGO
XYLA

Programmer Messages
Select the "Use Metal Gear" option, then use the Videophone. Dial the following numbers to get some messages from the people who worked on the game.

34-5678 - Programmer's Message
41-6766 - Jeremy Blaustein
34-5678 - Taeko Hayasaka
44-3723 - Hideo Inamura
33-3333 - Satoshi Kushibuchi
84-6736 - Keizo Nakamura
79-6641 - Moai Sasaki
44-6454 - Mitsuhiro Togo
30-1234 - Konami
0780000573 - Konami R & D Section

Other Numbers
256-128 - Junker Headquarters
39-3444 - Jamie Seed
39-1009 - Neo Kobe Pharmaceuticals
39-5644 - Napoleon
69-1107 - Plato's Cavern
55-6666 - Love Line
39-6004 - Stella Stegasaur
44-6454 - Togo
30-2501 - Freeman's Father
33-3333 - Kushibuchi
177 - Weather Service
911 - Police
119 - Fire Department

Uncensored Mode
Select the "Load I.D. file" option on the Jordan computer. Enter "KONAMI" at the "Enter Name" prompt. A sound will confirm correct code entry.
Scenes from the Japanese version of the game will be restored during game play.

Please note, that it is highly speculated whether or not this actually does anything to the game. It is my honest opinion that it does NOT.

Gillian : The Murderer
Yes, believe it or not, there is a part in the game where you CAN kill Jamie. It's not a necessary part in the game, but if you are not careful, it will happen. Click here for the sound file.

Gillian Has His Fortune Told
After you meet Napoleon for the first time, continue selecting "LOOK" and "INVESTIGATE" the "NEARBY PEOPLE" until you get an option called "FORTUNE TELLER". You'll be able to have your fortune told in a hilarious cutscene.

Try Neo Kobe Pizza
When you are in PLATO'S CAVERN (actually outside of it), keep using the "LOOK" and "INVESTIGATE" options on "FOOD STANDS". Also use the "SMELL" option until you get an option for "NEO KOBE PIZZA".