No one owns the rights to the character, only the rights to a specific game which they will not fully own, its the developers that make the decision of what to console to put the game on.Originally Posted by masterhand
Snake is a character owned by its developers, KONAMI.
I also will mention that metal gear on NES was a port of the MX20 game.
The NES was used because it was the best system at the time. At the moment it is as the PS3 (Power wise).