Well-Made; Could Use Some Brushing Up, Though.
I liked how you put motion in the whole thing with the sprites, but I think you can do a bit better in that respect. What I mean is that I think there were some instances where you could've used better sprites, or at least with animation that looked a bit better; for example, when Ground Man was thrown off the screen, you probably should've accelerated the camera to him as he careened off the screen, so that way the explosion sprites are where they should be instead of a whole bunch of explosions on the same screen as Mega Man and Genburrier. Also, it doesn't make a whole lot of sense that Mega Man was grabbed by Genburrier's drills; maybe you could've just had him pin Mega Man to the ground and shot some kind of explosive shell from within his drilly appendages. Other than stuff like that, I like your style in how the battle went, such as how Genburrier looked when he was crippled by Ground Man and how he blocked Mega Man's Terra Buster.
Lastly, not to be mean or insulting, but try and work on the dialog. It's not really grammatically correct the way they said things.