Awesome, I'm waiting for more. Visual style is perfect, this level is good for being the first one and the wall jumping reminds me of N. Speaking of that game, the movement feel a bit better in N, like less floaty and more controlled. I think that's the only part, apart from more levels and powerups, that needs a little work.
I really like this, it reminds me of one of the games of my childhood: Outfoxies.
I think the mêlée fighting could use some improvement though. Visually I find hard to know who hits who, and it's like those hits have no strength. Probably a more "punchy" sound would help.
Better than words, one example: Super Smash Bros. I think, knowing the differences, that's the kind of fighting this game needs to be superb.
Maybe you don't want mêlée to be so important, then you can ignore everything I wrote above :P