I complete a walkthrough of Mega Man 2 without dying once. This was accomplished on the playstation 2 Mega Man Anniversery Collection game. By default when you start the Mega Man 2 game it is on Hard mode this is evident by how much damage you do to the bosses (For example on Normal mode it only took a single metal blade to defeat Metal Man in Dr Wiley's stage. On Hard Mode you have to hit him twice.).
I complete the stages in the following order: