Wonderful!
I've been waiting for this flash since the age of 10,the music in the flash was wisely used since the whole flash was based off music rather than sound effects,the whole shading and 3d imaging was also well done,I'm impressed.
Despite the greatness of the movie,there seems to be some animation mistakes and proportioning issues in this movie,like how in some scenes the characters (Sonic and Shadow) were poorly drawn and when Shadow turns super one of his spikes on his head isn't here,but this whole fan flash was based off the anime rather than the franchise itself,it isn't a bad thing,but i prefer you'd stick with the video game storyline.
Just to sum it all,the storyline was pretty good for tribute to the anime,i really loved the movie,but sadly it isn't my favorite,it would've been if the movie was released when i was 10,that would make it my all time favorites since i was a huge sonic fan back then,I'm still very disappointed that it took so long to be out,still am.
5/5
8/10