Nomination: Megaman 2

[JadePharaoh]

The Megaman series has been a favorite of many a gamer. You fight cool robots, you can select them in any order you want, and you get their weapons after defeating them. This simple, yet consistent formula has made the series a lot of fun to play, and it owes its success to Megaman 2, released in 1988 for the NES.

The first game introduced many of the familiar concepts of the series, but it didn't sell well enough initially to warrant a sequel. Series creator Keiji Inafune convinced Capcom to allow them to work on a sequel, which they ended up doing largely on their own time. Inafune and his team were quite passionate toward the project, however, and it showed. This was the game that turned Megaman into one of Capcom's most beloved franchises, and is still regarded by many gamers as the best in the series, if not one of the best games on the NES.