Yeah, Mega Man 1 was hard. But not so much the regular bosses. It was the final stages - I couldn't kill that "Rock Man" monster without taking like a million hits. Dr. Wiley was a bitch as well. Then he just gets away, in a super lame ending.
I couldn't play these games anymore for two reasons. Disappearing. Platforms.
I enjoyed the first two X games on the SNES.
Then we get to the PlayStation 1. Mega Man 8 sucked. I started playing around with X 4 & 5, but quickly lost interest.