A continuation of the Legacy Collection, this is a compilation of the following games:
Like the previous collection, there is also a museum containing concept art and such. Also, from what I have read, the Mega Man 9 and Mega Man 10 releases include at least some, if not all, of the separate DLC that was available for those games.
I don’t (yet) own any of the console systems that this was released on, and I haven’t tried my hand (yet) at the PC version. So I don’t have any specific details to give at this time.