I just want to play for fun with the least amount of difficulty. How do I "cheat"?

Which one is the easiest to beat?

but i rage quitted at the yellow devil... f**ck that boss

I enjoyed all 11 Mega Man games. But 6 has to be my favorite. I just really like the level designs and robot masters.

I'm curious to hear from the mega man community rather than just gaming journalists who claim mega man 2 is the best because of nostalgia. I think mega man 2 is a fine game, but of the classic series its my personal least favorite. I think there's a lot of overlooked design flaws in mega man 2, everywhere from poor boss patterns to bad weapon balance to unfair level design. I know the game was rushed, but it feels like someone just equipped the metal blade for play testing and said it was fine....