The fourth installment in the classic Mega Man series introduces a new villain, Dr. Cossack, a Russian scientist who has taken over as resident mad scientist bent on taking over the world.

Mega Man 3 would take some liberties with its game play and ultimately stifle the flow that would have greatly benefited the series

But as good as the second trilogy is, the first trilogy is great, and it's those games you should turn too if you really want to play the best of the classic series.

It won't change your mind if you weren't a fan of the classic NES series

Number four in the Classic Mega Man series, it's not too hard, but not too easy