GamerLimit: "No, Megaman 9 is not easy by any means. As a matter of fact, it may just be the most difficult entry in the series. And fans of the series wouldn't want it any other way. It is Megaman in it's truest form: 8-bit graphics, a funky classic soundtrack, challenging (and on occasion downright brutal) level design, and the usual "rock-paper-scissors" boss structure. There's cheap deaths, frustrating mini-bosses, and the Megaman "Game Over" screen. Lots and lots of game over screens. Capcom did fans a great service with this game.
For those of you who have never played a Megaman game (and if you've been born since like 1990, why haven't you?), here's the gist of what to expect. Megaman is a good old action platformer. You run, you jump, and you shoot. The game is divided into eight different stages, playable in any order you choose. Each one is designed in the theme of the evil Robot Master who serves as the stage boss. As you defeat each of the Robot Masters, you acquire their special weapon to use for yourself. Each of the Robot Masters is weak against a particular weapon, so the trick to the game is figuring out the correct order to progress through the levels. When the dust settles, your final challenge awaits in the person of the main villain throughout the whole series, Dr. Wily (and no complaining about spoilers, did you really expect it to be anyone else?)."