The Metal Gear series is one of the most legendary in the entire realm of gaming. Rising from the obscurity of its roots on the mostly Japanese centered MSX computer platform, the reboot of the series with 1998's Metal Gear Solid for the PlayStation cemented the series as one of Konami's flagships. Its unique stealth centered action design gave the gameplay a one of a kind feel that would barely be replicated despite the game and series' runaway success.
Konami would follow the first Metal Gear Solid's success with a mission based spin-off Metal Gear Solid: VR Missions before the main series would continue on PlayStation 2. Both Metal Gear Solid 2 and 3 were some of the most successful games for the PS2. Sony had released a portable console in Japan in 2004, which released in the rest of the world in 2005, the PlayStation Portable. The next Metal Gear game would be Metal Gear Solid: Portable Ops for the PSP in 2006, followed by Metal Gear Solid 4: Guns of the Patriots on the PlayStation 3. Meanwhile, the team that developed Portable Ops was developing the PSP's flagship Metal Gear Solid game, Peace Walker. During the late PS3/XBox 360 generation, Metal Gear Solid V: Ground Zeroes would be released; followed by its second part, The Phantom Pain. For long time fans of the Metal Gear Solid series, Portable Ops and Peace Walker feels like the definitive dividing line between the older PS1 and PS2 era games, and the HD PS3/PS4 and Xbox 360/Xbox One games.