Wow, thanks for the link to the higher bitrate version! I downloaded all the others too!
Megaman remixes, I think, are pretty tough jobs to do. They're fairly tinny-sounding to begin with, and to do a really good job, you have to do quite a bit more than just throwing same random beat on top of it.
Blue Lightning is an example of a job well done. It gets my whole body flowing with rhythm and I think of what a bitchin' lasershow it would make with this as the motivation (seriously, get a good beat-tracking Sonique/Winamp plugin, full screen it, and watch this baby go. It's pretty good.) While it strays a little bit from the "story" the music goes to, it doesn't do it enough to be totally detached. Really, it's only when you sack the melody for the transitional beats. As soon as the melody comes back, I see that little blue guy daring across the screen. So, I agree with Ginnsu a little bit, in that you could probably shorten it by getting rid of the overly-long indepedant synths.