I don't know why this wasnt blammed.
This flash is alright but you could have done so much better, i just simply don't think it is up to the standards of newgrounds, although i have seen a lot worse. If you are just getting opinions there is a whole NG alpha section for that. The credits button didnt work, there attack I could probably pull off myself, all they did was swing there arm. In multiplayer when you beat your opponent you could still attack them making both of you. When you get to the second level you can't use the first until you complete it. And when you start the first level it goes straight into a timer with no explaination, the second level has no explanation either. There are so many glitches and inconvieniences like there being no back or menu button, that could be fixed with a bit of extra effort and actionscript-know-how.
The music and graphics were nice though and you have obviously put a lot of work into it, just fix up easily noticable glitches and inconvieniences before you post a demo.