Metal Gear Solid 2: Substance, Metal Gear Wiki

Metal Gear Solid 2: Substance is an enhanced port of Metal Gear Solid 2: Sons of Liberty first released for Xbox, before being ported to PlayStation 2 and Microsoft Windows. Substance contains the main Metal Gear Solid 2 game along with some subtle alterations, including new infrared effects for the thermal goggles, additional cutscenes, and a new set of dog tags, as well as the inclusion of the Boss Survival and Casting Theater modes that were missing in the North American version of the origin

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