Summary

Metal Gear Solidon the original PlayStation, despite being the third canon game in the series, was many fans' first exposure to the franchise. It is a solid - no pun intended - jumping-off point even today for those interested in the franchise. With the recent re-release of theMetal Gear Solid Master Collection Vol 1, many fans arereliving the joy of playing this gameagain.

With the knowledge they already have of the sequels, players can see the events and characters in a whole new light. While the game stands on its own, the facts below revealed by its sequels help connect it to the overall story and events that occurred both in its sequels and prequels.

gray fox from PS1’s metal gear solid

Updated on June 18, 2025, by Jason Wojnar:Though Metal Gear Solid has a pulse, it is difficult to tell what the future holds for the series after the Metal Gear Solid 3 remake comes out. Even if that is the end of the Metal Gear renaissance, 1998’s Metal Gear Solid will always remain one of the medium’s most relevant titles. Players can either take it on its own or analyze it using all that they know about the characters and the lore after having played the other games in the series, as the updated version of this list shows.

The sequels refer to the events ofMetal Gear Solidas the Shadow Moses incident, based on the location where the game takes place.

Psycho Mantis lying on the floor

10Frank Jaeger Was A Child Soldier

And Big Boss Knew Him All The Way Back Then

Gray Fox has been a character since the debut entry in 1987. However, his relationship with Big Boss goes all the way back to the character’s childhood. A side character in Metal Gear Solid: Portable Ops named Null is a ninja robbed of any identity and personality.

However, Big Boss is eventually able to break through to him and it is revealed that Null is Frank Jaeger, who would go on to become Gray Fox. This backstory further explains why he joins Big Boss in Metal Gear 2: Solid Snake. Having been a soldier since childhood, he feels like he has no other purpose in the world other than to fight.

Closeup of Solid Snake

9Psycho Mantis And Liquid Snake’s Connection

They Have Known Each Other Since Childhood

Psycho Mantis is one of the most iconic boss fights in the series. The character receives another nod inMetal Gear Solid 4. In the prequel,Metal Gear Solid 5, a younger Psycho Mantis plays a large part in the story.

He is responsible for the resurrected Volgin, known as the Man on Fire, and is also used by Skull Face to control Metal Gear Sahelanthropus. It is on Mother Base where he meets Eli, who is a young Liquid Snake. Psycho Mantis helps Liquid escape with Sahelanthropus and some other child soldiers. due toThe Phantom Pain’sunfinished story, it is unclear what happens next.

Snake Standing in front of The Darpa Chief

There is a bonus feature on thePhantom Pain’smaking-of bonus disc that includes an explanation of how their story would have concluded. It is not an official part of the game, however.

The Whole Series Is A Conflict Between Two People

Some fans grew a little disappointed with the series as later entries painted every other game as one long elaborate plan going back to the 1960s. The Darpa Chief’s murder, Master Miller’s death, and Dr. Clark/Para-Medic’s death after experimenting on Gray Fox were all a result of the decade-long conflict between Big Boss and Zero.

While this might make the whole lore feel too big to understand and unwieldy,Metal Gear Solid’sstory still makes sense on its own even if one did not play the first two games in the series.

Snake And Kaz Talk About Snipers with pictures of Kaz and a sniper in a ghille suit in Metal Gear Solid: Peace Walker

In fact, most gamers in the west did not playMetal Gear 2: Solid Snakein 1998 since it was never officially released untilMetal Gear Solid 3: Subsistencein 2006.

7The Darpa Chief Is Sigint From Metal Gear Solid 3

And Ocelot Kills Him On Purpose

Metal Gear Solid 3introduces a whole new cast of characterswho ultimately become vital to the series' overall narrative. Donald Anderson, the Darpa Chief, was a founding member of a group called Cipher that ultimately morphed into the Patriots. He was also largely responsible for the AI that would go on to become GW that activates at the end ofMetal Gear Solid 2.

He and Ocelot were on opposite sides of the grand conflict behind the scenes in the franchise. Even though his death was ruled as an accident as a result of torture, later games reveal that Ocelot intentionally killed him.

Zero standing behind Para-Medic

6Miller Knew Big Boss And Was Likely Murdered By Ocelot

The Two Grew To Be Rivals In The Phantom Pain

Those who playedPeace WalkerandThe Phantom Painknow loads more about McDonnell Miller thanwhat is revealed during Snake’s missionon Shadow Moses island. This is largely because that’s not Miller in the 1998 game, as the last act reveals. The prequels reveal his real name and backstory and eventually show that he is missing an arm and a leg and is partially blind.

The ending ofThe Phantom Painreveals that he is set to work against the real Big Boss, having felt betrayed by the revelation of that game’s main character being an impostor. This makes his death fit into the overall narrative, since it was likely orchestrated by Revolver Ocelot. It also makes sense why he was a supporting character inMetal Gear 2and not in the firstMetal Geargame where the main villain was the impostor Snake.

Metal gear solid meryl on top of Metal Gear Rex

5Dr. Clark Is Para-Medic

This one is hard to imagine since Para-MedicinMetal Gear Solid 3feels so innocent as if she could never hurt a fly. However, she is responsible for the experiments that turned the almost dead Frank Jaeger, or Gray Fox,into the cyborg ninja.

He escapes and kills Dr. Clark, which was a part of the plan by Ocelot and Eva, a major character fromMetal Gear Solid 3since she was allied with Zero in the Patriot’s plan. It would be interesting to eventually see her arc from a medical professional to a mad scientist, but no such information exists in theMetal Gearlore yet.

Solidus Snake after destroying metal gear rays in Metal Gear Solid 2

4Saving Meryl Is The Canon Ending

But She And Snake Don’t End Up Together

Metal Gear Solidhastwo notably distinct endingsbased solely on the player’s ability to resist Ocelot’s torture after Snake’s capture followingthe first fight with Sniper Wolf.

If players resist the torture they unlock an ending where they save Meryl and escape Shadow Moses with her. The other ending sees Meryl dying and Snake escaping with Otacon. The former is revealed inMetal Gear Solid 2to be the true ending, and Meryl eventually plays a huge role inMetal Gear Solid 4.

Ocelot standing behind Liquid Snake in the Shadow Moses control room

Meryl Siverburgh is also a character inPolicenauts,another Hideo Kojima game from the 1990s.

And An Unwilling Pawn Of The Patriots

Metal Gear Solid’spost-credits sequence reveals the President of the United States to be the third child of the Les Enfants Terribles project and Solid Snake’s brother. Not only that but he was made president by the Patriots, who also made him resign shortly after the Shadow Moses Incident.

He, known as Solidus Snake, is the main villain ofMetal Gear Solid 2: Sons of Libertywhose main goal is to break free of the Patriot’s control and live in what he considers to be a free world. He also directly partook in the Liberian civil war and was involved in extremely heinous war crimes.

Meryl in front of communication tower MGS 1

2Ocelot Is A Significant Character To The Overall Canon

He Was Working With Big Boss All Along

InMetal Gear SolidRevolver Ocelot is cool with his twirling pistols and outfit right out of the Wild West. Only the ending reveals his larger role in the plot. Each sequel expands upon his role until he is one of the most important characters in the lore.

As a young soldier, he is a double agent for the CIA but eventually becomes a member of Cipher before breaking off and teaming up with Big Boss to try and destroy the Patriots and Major Zero’s plan. Everything he does in the sequels is an attempt to kill the opposing member of Cipher and destroy the system Zero set up.

1Meryl Finds Out The Campbell Is Her Father Anyway

And It Destroys Their Relationship

In the original game, Colonel Campbell only reveals that he is Meryl’s biological father if she does not survive.Metal Gear Solid 4shows that she does eventually find out the truth sometime after the Shadow Moses Incident.

She ends up hating Roy Campbell for it, only resolving her hatred by the end of the 2008 game. Additionally, whilethe canon endingsees Meryl and Snake ride off into the sunset, they quickly break off their relationship, only meeting again inMetal Gear Solid 4,nine years afterMetal Gear Solid’sevents.