Gun management in the United States has always been a big problem, and many companies around the world are currently working on smart-certified guns, which can only be used by certified users. Kojima tweeted about this phenomenon today and associated his own thoughts about ID recognition during the development of Metal Gear Solid.
Hideo Kojima said: "The world is developing 'smart guns' that require individual certification. It is currently being tried to unlock it with biometrics and smartphone methods. In the proxy wars between Metal Gear Solid 4's private mercenary companies and drones, I thought of using an internal nanocomputer to control the ID. The only problem is that this has created a proliferation of illegal unlocking of 'washed' weapons (similar to money laundering). ”
"There was a limitation at the beginning of Metal Gear Solid, and because of this system, you can't use guns that enemies own or drop. In some other linear games, you can pick up dropped weapons and move on. In Metal Gear Solid 2, we temporarily made this setting so that players can't use the guns of local soldiers because they registered their IDs, and in Metal Gear Solid 2 we made it into a story setting. ”