Pretty damn epic!
I really enjoyed this one, it actually touched my heart! But I would have like to seen more (a battle against Robotnik's/Eggman's henchman...i forgot the name), It was a bit out of order first seeing Sonic & Tails in the Cell and then having a fight somewhere else, and somehow I didn't like the fact that Tails using a knife, to kill Sonic...that somehow doesn't fit into the Sonic-Universe!
Anyway, thumbs up!