A blue guy running around shooting enemies through pull-your-hair-out challenging stages? It's Mega Man alright.
That being said, it's Mega Man, it's supposed to be challenging, and it does overdo the challenge factor every now and then, but let me tell you, I am a very average skilled gamer, just don't give up and replay a stage a hundred times if you have to, it is manageable. The bosses vary in difficulty, some go down with only 3 hits of the right weapon, others are a lot harder. Yes, the yellow devil is here, the same is the clone battle, the final boss battle is not THAT tricky though. Anyway, this is a piece of gaming history, the first Mega Man game to the NES, and hardcore fans should definitely revisit this old school greatness, casual gamers could check it out as well, but be warned, it is really difficult.