Cool sprites you have here
What can I say - very good Sonic sprite movie - one of the best in the Portal. Really. I, as a huge Sonic fan, must admit that you're one of the best Sonic sprites movie maker. So smooth movement of sprites, high variety of music from diferrent video games and movies (LOTR). Keep it up. CAn't wait to see other part of this.
BTW, you also might like one of my portal submissions. Check my profile if you have some spare time. Good luck !