The European PlayStation 2 version comes with _Document of Metal Gear Solid 2, The (2002) (V)_, an interactive PS2-exclusive documentary of Metal Gear Solid 2: Sons of Liberty (2001) that is not included with the other versions (outside Europe, it can only be purchased by itself).
The PlayStation 2 version features a "mini-game" where players can skateboard around the Big Shell as either Snake or Raiden. This is a segment of a PlayStation 2 skateboarding title by Konami, and as such is not included in the Xbox or PC versions.
The PlayStation 2 version features extra fights in the Boss Survival mode and extra characters in the Casting Theater mode.