"Mega Man 9 (ロックマン9 野望の復活!! Rokkuman 9: Yabō no Fukkatsu!!, lit. Rockman 9: Revival of Ambition!!) is a platform game developed by Capcom and Inti Creates. It is the ninth game in the original Mega Man series, and the first series re-release (not counting spin-offs) since the 1998 game and 2002 release of Mega Man & Bass. The game was published by Capcom in 2008 on the PlayStation Network, WiiWare and Xbox Live Arcade. Mega Man 9 continues Mega Man's fight against Dr. Wily and his robot creations.
Although the game was developed for modern consoles, Mega Man 9 uses graphics and sounds similar to the Nintendo Entertainment System as a throwback to the earlier games in the series. The cover art, too, is a nod to the covers of the early Western titles. The game was a commercial success and received mostly positive reviews from critics, which prompted Capcom to follow the game up with a sequel, Mega Man 10."
Source: Wikipedia, Mega Man 9 , available under the CC-BY-SA License.