After you defeat Cossack, Mega Man sees Dr. Wily, and chases him into a newly constructed Skull Castle.

After the excellent Mega Man 3, Capcom kept with the gamers' demand for more of the Blue Bomber

Don't get me wrong, there's several difficult moment in X5 and X6, and Mega Man 5 isn't exactly a walk through the colorful cherry orchard park either, but overall MM4 might take the cake for the most consistently difficult Mega Man game I've ever put inside one of my video game consoles.

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.

Because of this, Mega Man 4 lacks an identity

The other Robot Masters (Toad Man, Dust Man, Dive Man, Bright Man, and Ring Man) are fortunately pretty original, and it's clear Capcom hasn't come to the bottom of the barrel as far as ideas for Robot

Mega Man 4 might go down as one of the hardest Mega Man games I've EVER played.

Drill Man is a little derivative of Hard Man from MM III, but still a good design

This is the last truly great Mega Man game, as the next batch of games would go a little downhill.

The other Robot Masters (Toad Man, Dust Man, Dive Man, Bright Man, and Ring Man) are fortunately pretty original, and it's clear Capcom hasn't come to the bottom of the barrel as far as ideas for Robot

This game, people, is the last great Mega Man game.

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

He then leads Mega Man to a new fortress

If you love Mega Man, I suggest that you get this game now.

Between MEGA MAN III and this game, Capcom considered taking Mega Man to the SNES, but decided to delay Mega Man's arrival to the new console for a further two years.

As laughable as that may sound given how many games there are in the series, it's this same train of thought that makes it a very noticeable and serious problem