hi if you need any help
with sprites pm me and ill help you out ... then you can have a background and the sprites will follow it (gaps between any part of the sprite will be able to see the background).
and about your flash its quite good for a first flash its better than mine and mine has a background. yours had a few good jokes such as eggman getting called fatty, its about time someone said it lolz. the idea was good although you should make a sequel for robo robotnick from sonic 3(and knuckles).
7/10
4/5
GR