Rockman & Forte, known as Mega Man & Bass in the Western world, is the last game chronologically released for the original Rockman/Mega Man series.
This time around, Wily has his own creation turned against him, allowing you to play as Mega Man or a bad guy!
This run uses only Rockman, however, and collects all 100 CDs, which is not intended to be possible using only one character.
There is also another run by sparky, which uses Forte and does not collect all the CDs.