Close Menu
Sirus Gaming
    • News Stories
    • Features
    • Reviews
    • Previews
    • Guide
    • Review Policy
    • Privacy Policy
    • Contact
    What's New in Sirus?

    Eaglemon & Other Digimons Will Appear In Digimon Story: Time Stranger

    April 22, 2025

    5 Animes Making Their Debut In Super Robot Wars Y

    April 22, 2025

    Super Robot Wars Y Release Date and Gameplay Details Revealed

    April 20, 2025
    Facebook X (Twitter) YouTube
    Sirus Gaming
    Sirus Gaming
    Guide

    Metal Gear Solid Codec Frequencies (Master Collection)

    By Erickson MelchorOctober 25, 20235 Mins Read
    Share
    Facebook Twitter LinkedIn Pinterest Email

    In Metal Gear Solid, Codec is a fictional communication device that allows direct two-way audio communication from one character to another over different frequencies. These frequencies are numerical values that players can dial in the Codec screen to contact various characters and receive advice, background information, or advance the plot.

    This guide will tell you all the Codec frequencies that are worth knowing in Metal Gear Solid.

    List of Metal Gear Solid Codec Frequencies

    • 140.85: Roy Campbell
    • 140.96: Mei Ling
    • 141.80: Master Miller
    • 140.48: Deep Throat
    • 141.52: Nastasha Romanenko
    • 141.12: Otacon
    • 140.15: Meryl Silverburgh
    • 140.07 – Developer Commentary
    • 140.66 – Hidden Audio Tracks

    This is a list of all the Codec frequencies you can call for help. There are a lot of lines in the game and they’re some of the best the series has to offer. One could say that the Codec peaked in the first game and it has failed to reach these heights ever since.

    Metal Gear Solid Docks cover

    140.85: Roy Campbell

    Roy Campbell provides Snake with hints on how to advance a section. He also proved to be invaluable during boss fights like the time he gave advice to switch to the second controller port to defeat Psycho Mantis.

    Naomi Hunter will sometimes chime in when her expertise is needed. She can provide details about the FOX-HOUND members as well as some hints to use while fighting them.

    140.96: Mei Ling

    Mei Ling is responsible for saving mission data. Call her up when you want your game saved when you are not busy dodging bullets. She also gives you different quotes and comments on their potential meaning.

    141.80: Master Miller

    A former survival instructor, he gives psychological advice as well as tips about various special techniques. He also tells stories about life in Alaska.

    140.48: Deep Throat

    A frequency you can’t call back. Deep Throat will occasionally drop in at certain points, giving you information that is crucial to your task at hand. It is very much worth hearing what he has to say if you’re new to the game.

    141.52: Nastasha Romanenko

    Resident weapons expert, Nastasha Romanenko provides Snake with information concerning firearms and the handling of nuclear weapons. You can listen in on what she says about a new weapon you’ve recently picked up.

    What is Otacon’s frequency?

    141.12: Otacon

    Otacon is one of the few remaining staff members to have survived Shadow Moses, thanks to no small part to his stealth camo. (Though his meeting with Snake could have been… without accident.) Still, he knows a lot about the base and Metal Gear REX. His advice made all the difference during the REX boss fight. That’s the only time he can be relied upon, actually. Unless it’s more stories about Sniper Wolf.

    What is Meryl’s frequency?

    140.15: Meryl Silverburgh

    Meryl’s soldiering career didn’t exactly start off with the right foot. She had to be in disguise after she escaped captivity, only to be captured again and used as bait to force Solid Snake into the open. Still, when she isn’t held against her will she does provide support and valuable background information in some of the facilities.

    Hidden Codec Frequencies

    When Metal Gear Solid Integral was released for the PS1 back in 2000, it expanded on some of the aspects of the first game, including a couple of hidden Codec frequencies.

    140.07 – Developer Commentary

    When you tap into this frequency, you’ll be able to listen to developer commentary about the game. Unfortunately, Integral’s version only had Japanese text and audio. The in-game Screenplay Books is a great alternative in the Master Collection for those who really want to go into detail.

    140.66 – Hidden Audio Tracks

    This frequency is usually full of static save for a couple of locations that allow you to listen to two music tracks from Metal Gear 2: Solid Snake. The first area is the Canyon where you fight the tank boss. When you tap into this frequency at this location, you will hear the ‘Theme of Solid Snake’ in the background. The second area is in the Snowfields. This time it’s going to be the ‘Zanzibar Breeze’ music track playing.


    The Codec is one of the things that is uniquely Metal Gear Solid. Apart from CQC, a little something Solid Snake conveniently forgot about until Guns of the Patriots. The Codec played a huge part in the series from directing players to the next objective, giving them clues to the task at hand, and even having philosophical talks about the worth of mankind. One never really knows what to expect when tapping into a frequency.

    And that’s everything I have for all the Metal Gear Solid Codec frequencies. This is a very good time to be reminded of all the frequencies, not just for old grizzled veterans like myself, but for new players curious about what gaming was like in the PS1 era. May you have more wonderful moments like looking at the CD case for Meryl’s Codec frequency.

    Share. Facebook Twitter Pinterest LinkedIn Tumblr Email
    Erickson Melchor
    • Facebook

    Erickson is not just an indie game developer but also a discerning critic who aspires to see his games make a positive impact someday. In the meantime, he diligently works on his craft and immerses himself in a variety of games. You never know when and where inspiration might strike. As a Destiny 2 enthusiast, Erickson spends a considerable amount of time exploring the world of Guardians. Furthermore, as an editor for Sirus Gaming, Erickson blends his game development insights with a critical eye, aiming to enrich your gaming experience while sharing his unique perspective on the industry.

    Related Posts
    Metal Gear Solid Psycho Mantis cover

    How to Beat Psycho Mantis – Metal Gear Solid 1 (Master Collection)

    October 27, 2023
    Metal Gear Solid Canyon cover

    Canyon Walkthrough – Metal Gear Solid 1 (Master Collection)

    October 27, 2023
    Metal Gear Solid B2 Armory cover

    B2: Armory Walkthrough – Metal Gear Solid 1 (Master Collection)

    October 27, 2023
    Sirus Exclusives

    5 Animes Making Their Debut In Super Robot Wars Y

    April 22, 2025

    10 Mecha Animes That Should Be Added in Super Robot Wars Y

    April 15, 2025
    R.E.P.O. Early Access Review Featured Image

    R.E.P.O – Early Access Review

    April 9, 2025
    Mandragora Whispers of the Witch Tree Playtest Impressions Featured Image

    Mandragora Whispers of the Witch Tree Playtest Impressions: A Potentially Great ARPG

    April 8, 2025
    About Us
    About Us

    Sirus Gaming is a team of passionate gamers delivering the latest news, reviews, and insights on the gaming industry.

    Find us on OpenCritic, and we're proud to have been a voting jury in The Game Awards since 2022.

    Contact us: [email protected]

    Check Our Reviews
    9

    Corsair Void Wireless v2 Gaming Headset – Review

    April 17, 2025
    AI Limit Review Featured Image
    8

    AI Limit – Review

    April 11, 2025
    Gal Guardian Servants of the Dark Review Featured Image
    8

    Gal Guardians Servants of the Dark – Review

    April 4, 2025
    Exclusive Content

    5 Animes Making Their Debut In Super Robot Wars Y

    April 22, 2025

    10 Mecha Animes That Should Be Added in Super Robot Wars Y

    April 15, 2025
    R.E.P.O. Early Access Review Featured Image

    R.E.P.O – Early Access Review

    April 9, 2025
    Facebook X (Twitter) YouTube
    • Privacy Policy
    • Review Policy
    • Contact
    © 2025 Sirus Gaming. Designed by Sirus Media Digital.

    Type above and press Enter to search. Press Esc to cancel.