Metal Gear Solid 2: Substance is a re-vamped and revised edition of the original Metal Gear Solid 2: Sons of Liberty, in which Solid Snake must recover the stolen Metal Gear Ray from a group of terrorists bent on using its power for unthinkable reasons.Īlong with the original espionage shooter comes a collection of 200 virtual reality (VR) missions. 13 Conclusion Metal Gear Solid 2: Substance Summary