I am not too sure. Ok yeah the game does have some really high tech stuff in it and some real weirdos. Still its something that doesn't hit on my head atleast.
The game I believe takes place in the year 2014 (Plant Chapter), and still they havn't shown really crazy stuff (other then MG RAY and Arsenal Gear), If they wanted to, they could have shown some serious stuff. It has some real high gadgets (that technology Fortune uses) So yeah things like Sci-Fi comes in mind.
Still, its a made believe game. The game doesn't take place in Space or in a really futuristic enviornment. So I guess, it cannot be considered a Sci-fi action.
But then I am sure people would have different point of views and probably say that MGS is infact a true Sci-Fi Action game. Oh well, opinions are opinions.
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