Coming from Nintendo Power:

Robot Masters

Magma Man
Galaxy Man
Jewel Man
Concrete Man
Hornet Man
Plug Man
Tornado Man
Splash Woman

– Dr. Wily returns
– Story: Dr. Wily blames Dr. Light for robot master attacks
– various level hazards: lava, gravity-defying magnetic platforms, Mega Man clones
– attacks gained from Robot Masters: Galaxy Man’s Black Hole Bombs
– development handled by Inti Creates (Mega Man Zero, ZX, Battle Chip Challenge)
– controls: Wiimote NES style, just as you would expect it to be
– Rush returns
– 8-bit style was chosen to ‘please fans’
– 8-bit music
– 8-bit cut-scenes
– difficultly on-par with NES games
– return of classic enemies, as well as new ones
– Will Protoman be playable? “you’ll have to wait and see.”
– hopes in surpassing the quality of Mega Man 2

Link