Wow has this really not come up here already. Even with a Kickstarter thread? I'll let the project home page speak for itself...
Mighty No. 9 is an all-new Japanese side-scrolling action game that takes the best aspects of the 8- and 16-bit era classics you know and love, and transforms them with modern tech, fresh mechanics, and fan input into something fresh and amazing!
Every aspect of development—art, level design, music, programming, etc.—is being handled by veteran Japanese game creators with extensive experience in the genre, and with Mega Man in particular, all the way up to and including the project’s leader, Keiji Inafune himself!
And for the music...
Mega Man 2 composer Takashi Tateishi is officially on board for Mighty No. 9!
Between him and Mega Man 1 composer Matsumae (who did our main theme already) and Inti Creates’ action-music veteran Yamada (who made all of this possible!), can you just imagine how AMAZING the Mighty No. 9 soundtrack is going to be?!
(And don't forget, at the $40 tier and up everyone gets a digital version of the full game soundtrack!)
Also note that the $3,800,000 pledge goal (they're at $3,500,000 now) includes an "optional retro-style chiptune soundtrack + fx".
Any MM fans here pledge for this already? There are seven hours left to go on the fund-raising period for any who want to get involved.