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".
Adventure (Atari 2600)
As the first action-adventure video game and first console fantasy game, "Adventure" established its namesake genre on video game consoles. In addition to being the first graphical adventure game on the Atari 2600 console, it is the first video game to contain a widely known Easter egg, and the first to allow a player to use multiple, portable, on-screen items while exploring an open-ended environment, making it one of the first examples, even as small and primitive as it is, of an open world game. The game has been voted the best Atari 2600 game in numerous polls, and has been noted as a significant step in the advancement of home video games. "GamePro" ranked it as the 28th most important video game of all time in 2007. In 2010, "1UP.com" listed it as one of the most important games ever made in its "The Essential 50" feature. "Entertainment Weekly" named "Adventure" as one of the top 10 games for the Atari 2600.