pretty good, but needs work.
Sorry to say but it really isn't any good. I know it is a Beta version, but it simply won't work unless you start almost from scratch. Although I must say it does look like a lot of effort was put into what is there.
The 3-d thing just isn't working for you...
I would suggest 2-d vector... Must better for this type of thing on Flash.
Too slow, I have a fast comp and DSL...the characters responce times are extrodinarily slow. The moves aren't the greatest either (possible just because it is so slow...not sure cause it isn't fast. heh).
Concept good. A little more in depth levels would be nice. Better sound would be good too, I figure you left it out on purpose, but just make sure it's better later. A little blood would be good, but not needed if you don't want any.
Try making the opponents look different too, at least differant than you (more than just color differant)
Also, make it more realistic...meaning no dumb signs in the background saying "Baby gap" or whatever...that looked like crap. It can be something funny, but not imported images, just ruins everything.
Hope my suggestions helped. Oh and sorry bout the low score, but it doesn't deserve much at the state it is in right now, however I'm sure your finished version will be much better if you make a lot of the changes I said above.