Goes on too long
It is hard to hate this cartoon that much, because it does have some innovative stuff in it. The best part was how you just had so much going on. The weaknesses was that the thing just goes on too long and it is hard for the watcher to keep their interest the whole way through. At least your picture of Robotnik was fairly good. Anyway, I am surprised you did not edit the audio for Darth Vader/Whoever that was for him to say, "He's alive" from "She's alive". I doubt a penis would ever be considered a "she".
Next time, work on having more of a background as it was blank in some occasions. You certainly have a creative side, just not the best way of using Flash with it. There are many tutorials you could take a look at. It was pretty cool with how you drew some stuff with pencils and I wish I knew how to do that. At least it wasn't an infinite loop.