Hey Edward.
Since you puth so much energy in this movie I decide to write a review for you. ;)
graphics: Nice graphics, and the blood and gore is all animated very smooth and well. Only the slowmotion bullet-time part didn't look really smooth. The backgrounds could use some inprovement aswell.
style: Nice style and very original to use Sonic-characters in a DooM parody, never ever have seen that be4 so good job! But the other reviewers are right, because you used so much zombies instead of demons it looked more like a ResidentEvil parody.
Sounds: Really good music choice, it fits the movie well and I really like that song! You also add allot of soundeffects so you got a 9 form me for Sounds! ;-)
Violence: What can I say? Seeing more then 50 zombie-Johns die in just 2 minutes and 48 seconds really kicks ass! You would have had a 9 for violence if it had some more action, since the zombies and the demon on the end where hardly any treath for Zody and Kry. So that why I have you an 8, which is still very good.
Interactivity: Not very interactive except for the play and the replay buttons. So thats why you get only 2 points from me for this. 1 point for the play button and 1 for the replay button. ^_^
Humor: Well, not much humor in this movie, except for John dying allot of times.
Overall: Good job! I can see you puth allot of energy in this movie and it turned out pretty well. It's not the best movie I've ever seen but for a 'newbie' flash-antimator, you did a very good job!