Really awesome...
It's been a while since we had a Newgrounds All-Star fighting game (I think the last one was Portal-Fighter). This one blows that one out of the water. It really does seem like you put 2 years of effort into this with the graphics, sound, and gameplay.
I do have some minor issues with the game, though. Button-mashing is pulled off too easily and gets rid of some of the challenge. Other than that, this is a great game and one of the best on the site today.