Quick answers for Metal Gear Solid.

What Codec frequency do I use to call Meryl?
After Revolver Ocelot, take the Level 2 Card and return to the main Armory. Call Meryl on 140.15. The original clue refers to the frequency printed on the game case.
Which controller port should I use for Psycho Mantis?
After Mantis demonstrates his powers, move the active controller from port 1 to port 2. On an emulator, assign it to virtual port 2. Attack him when visible and knock Meryl unconscious with a Stun Grenade or punches whenever he controls her; do not shoot her. Return the controller to port 1 after the fight.

Preserve the Meryl ending during torture

Surviving every torture round preserves this route’s Meryl ending. Submitting with Select irreversibly changes the current route to the Otacon ending.

  • Save after the Sniper Wolf battle.
  • Tap Circle rapidly during every torture round.
  • Never press Select to submit.

If a round fails, reload the save made after Sniper Wolf. Do not continue until every required round has been survived.

Continue with the complete route in the app.

What this Metal Gear Solid guide covers.

StartsA new Normal-difficulty game on Disc 1.
EndsThe credits after Snake escapes Shadow Moses with Meryl.
RouteBoth discs, all required cards and weapons, Psycho Mantis, the PSG1 backtrack, the PAL override, Metal Gear REX, and Liquid Snake.
Not IncludedThe Otacon ending, other difficulties, VR Training, ranks, speed or stealth challenges, ghost photographs, exhaustive items, or post-clear rewards.

Route preview.

  1. Infiltrate Shadow Moses
  2. Rescue the Hostages
  3. The Nuclear Building
  4. Mantis, the Caves, and Capture
  5. Communications Towers and Disc 2
  6. Metal Gear’s Hangar and the PAL Key
  7. REX, Liquid, and the Escape

Built for a first PlayStation playthrough.

The route explains original controls, Codec frequencies, physical or emulated controller-port switching, disc replacement, required backtracks, and consumable budgets before they matter. Camera corridors, boss phases, and long return trips use visible landmarks and explicit recovery instructions.

More quick answers.

How do I keep the cold PAL Key ready for the center terminal?
In the Warehouse where Raven fought, equip the PAL Key and keep it equipped until its item-screen illustration turns blue; this can take several minutes. Unequip it immediately, then return to the Control Room. Check it with L2 before using the center terminal. If it is no longer blue, return to the Warehouse and refreeze it.

Continue with the complete route in Retro Game Guides.

  1. Tap Open Guide in App.
  2. The supported game is added when a free library slot is available.
  3. The Standard Edition opens at saved progress and stays ready for offline reading.