It was not what I expected.

I watched this in anticipation of original sounds/video. While I watched it I could not seem to find a plot or story of why they were fighting, which reminded me of a stick figure fight video where there is nothing but sensless violence with not much of a story why. Other then that The sound affects and moves reminded me of DBZ, especially when shadow "teleports"? Work on the story line, then use some different sound affects/moves for the characters and I would love to watch it again.

Pointless. Unoriginal.

You tried to make it a little original, but you failed. Making an original Sonic sprite flash doesn't mean simply changing the perspective in a "Sonic vs anything" battle. It means coming up with a good plot that hasn't been done before. Your animation skills are good, you just need to couple them with an entertaining story. I don't know what you're planning for this series, but for the love of God, do not use Mecha-Sonic as the villian.

while i appreciate what you've done

the fact is the portal isn't a place to upload practice, teasers, trailers, or things you didn't feel like finishing (with some notable exceptions). there is a dumping grounds giving everyone the same amount of space to upload things like this without going through the portal. too much junk passes (since everything does nowadays) and it does not belong here. i think you have the start of something pretty solid, but this is not how you go about showing people.

that said, you took some nice new perspectives with sprites that i am not accustomed to seeing. i thought that part was refreshing, having seen countless sprite movies. the music is stale and boring, nothing special with no original audio. though sprites are overused (and poorly used too often) i have nothing against them, but it takes a lot to make them fresh. this wasn't a half bad effort.

use what you accomplished with perspective and build on it. get some voice actors and a script or maybe record your own audio - be unique and stand out in a sea of sprites. there are many great examples you can learn from.

but in the future, be an artist everyone can stand behind by only submitting finished works you think really represent your talent and abilities (because i see a fair amount). use the dumping grounds for things that need work or you are teasing for.

on principle of it not being finished, i can't score it very well, but i do see the makings of something actually worthy of a decent score coming soon. 2/5 and 4/10.

Probably should've finished it instead of...

uploading this. The start of it was ok and there is probably some promise in the final thing, but this was just way too short, slow paced and nothing really happened.
And i prefer the menu music to the music used during the animation.

Nice Start

Sadly, I'm going to vote 1 of 5, which is a blam, but I have my reasons.

It being a preview is mainly why I did. Newgrounds is more for finished products instead of previews. As far as the actual video itself goes:

1) I don't like how the fight started with sudden attacks, and then went into it's long drawn out parts. I know you were trying to be original, but a scene of conflict that goes into action is a proven technique that works.

2) Because of reason 1, the music didn't really fit. It sounds like something that would go into the higher points of fighting.

Other than that, you've got a solid start.