An improvement.
With this game, you could have that character pull off some sweet combo attacks. Maybe you could earn EXP to level up and get bigger combos. Maybe 2 attack types: Fast and Power. For bosses, pull off an ultra combo for an awesome Killer Instinct feel.
There. Hav I freaked you out yet? :)
Solid mechanics...
like I said yesterday. The main portal really isn't the place for a game in development. The NG alphas section is the place to go to get comments and assistance with an unfinished project. This is the link to that section:
http://www.newgrounds.com/ngmag/alpha s/
I look forward to a completed version of this in the future in the portal that has some of the suggestions in these reviews such as an experience system and perhaps improved graphics.