History of Nintendo
In 1972, the first commercially available video game console, the Magnavox Odyssey, had a light gun accessory, the Shooting Gallery. This was the first involvement of Nintendo in video games. According to Martin Picard in the "International Journal of Computer Game Research": "in 1971, Nintendo had -- even before the marketing of the first home console in the United States -- an alliance with the American pioneer Magnavox to develop and produce optoelectronic guns for the Odyssey (released in 1972), since it was similar to what Nintendo was able to offer in the Japanese toy market in 1970s".
Metal Gear
"Metal Gear" was the first mainstream stealth game, with the player starting the game unarmed, and sold over a million copies in the United States. "Metal Gear 2: Solid Snake" evolved the stealth gameplay of its predecessor and is considered one of the best 8-bit games of all time. "Metal Gear" and "Metal Gear 2" are credited with pioneering stealth mechanics. "Metal Gear Solid", which debuted at the 1996 Tokyo Game Show, was the first 3D stealth game, and is credited with popularizing the stealth game genre, as well as the hiding-behind-cover mechanic. The series pioneered the integration of cinematic techniques into video games, especially "Metal Gear Solid" which Eurogamer considers the "first modern video game".