Megaman as a series has been around quite awhile. The series has always been known for being incredibly difficult and lacking an easy mode. As such, people have come to expect a challenge from Megaman games. Sometimes even to the point of referring to games as having a "Megaman-like level of difficulty".
And so when Megaman 10 came out not too long ago, (containing an easy mode) fans of the series were...well confused and kind of put off. One such decided to make a video mocking said easy mode:
...which has received over 175,000 views on youtube.
Obviously, the series is most remembered not for the gameplay or the story, but for how HARD it is.