Although Mega Man is an iconic video game and video game character today, it was really the success of the second game in the series, Mega Man 2, that is responsible for its success. Mega Man 2 was the second and most successful game of the series (so far anyway). While the first Mega Man game was not a huge success, the second sold 1.5 million copies and led to four more Mega Man games being developed on the NES.
Mega Man 2 is much like the first Mega Man game but with some improvements. It is a typical side-scrolling 2D platform action/adventure game. Mega Man 2 takes place sometime in the 21st century and one year after the original game. In Mega Man 2, Dr. Wily, the main antagonist in the Mega Man games, has created a series of "Robot Masters" including Metal Man, Air Man, Bubble Man, Quick Man, Crash Man, Flash Man, Heat Man and Wood Man. Your goal as Mega Man is to defeat these robots and ultimately Dr. Wiley himself.
Mega Man 2 had a number of improvements that made it better than the original. First, it was a longer game and a password system was added so a game could be continued. Second, the difficulty was adjusted and more helpful items were added for Mega Man to find. Also, both the soundtrack and graphics were improved for the second iteration of the Mega Man series.
If you play just one Mega Man game in your life, Mega Man 2 is probably the best one. There are many other very good games in the series so if you like this one you will probably like most of the others too. I think the original NES version released in 1988 is the best one to play but there have been subsequent releases on the PlayStation 2, GameCube and Xbox as part of the Mega Man Anniversary Collection as well as on the Wii Virtual Console. Any of those are reasonable versions to play and are mostly the same as the original.
Read more: https://www.megalextoria.com/wordpress/index.php/2018/02/22/mega-man-2-nes/