Metal Gear Solid: Snake Eater 3ds (eur/jpn) Cia -

What's the difference between 3ds files and CIA files? : r/3dspiracy

The phrase "Metal Gear Solid: Snake Eater 3DS (EUR/JPN) CIA" refers to a specific digital file format for the Nintendo 3DS version of the game, intended for use on modified systems or emulators. Metal Gear Solid: Snake Eater 3DS (EUR/JPN) CIA

While the core gameplay remains the same, there are minor distinctions between these versions: What's the difference between 3ds files and CIA files