Even though it isn't what the Metal Gear Solid fans wanted to see , it's not really accurate to say it's part of the MGS franchise.
"Metal Gear" remains in the title and the game has changed significantly since gamers first saw it several years back, and those remain sore spots for a few people. But some new information has come to light that may erase some of the backlash.
Kojima Productions has stepped up to address a few rumors and misconceptions , which is exactly what they needed to do: first, Metal Gear Rising is not a proper sequel in the MGS universe. According to Kojipro's official Twitter page-
"We've only said that the period setting is several years after MGS4. Metal Gear Rising is not part of the Metal Gear Solid series. At present, we can't say more than this."
Producer Yuji Korekado added a few more behind-the-scenes tidbits. Interestingly enough, the original project got to the point where the team "no longer knew what the core of the game should be." Then, Kojima said the game might not be completed, and although the staff insisted they could finish, the game wound up being canceled. They had, however, already worked on story and motion capture aspects.
Then some members of Platinum Games wandered over to the Kojima Productions studio, and they really wanted to take on the incomplete project. They changed the title because frankly, it's a brand new Metal Gear . Oh, and Hideki Kamiya will not be the game's director, so that's sort of a strike against the game; we love that guy.
So maybe this info will alleviate some of the pain the hardcore MGS fans are feeling. This isn't for you, and you don't have to think it's part of the "Solid" universe…'cuz it ain't.
Related Game(s): Metal Gear Rising: Revengeance