I thought overall, it was a good movie, meets the expectations of the viewer.
Good graphics, I thought they fit the comic nicely. And the character designs are great. Nothing much I can say here. Sometimes the words do go by a bit quickly, but luckily, you put voices in, so you could hear it if you missed reading it.
I didn't find much wrong with the voices. Especially in the part with Knuckles' new name, I thought the voicing was perfect for the scenes.
Pretty funny, I had a good chuckle. Double getting sucked into the Dr. Pepper cup was classic, and Shade sitting there all disturbed. And the little message on the cup when his face is sucked in.
Funny, I thought it was overall a good Flash movie. Most people think that there has to be super flashy effects that can put you into a coma, or something that needs to be worked on to the point where the author hasn't eaten or slept in weeks. Sometimes the more simpler things are just as good, if not better.