It's an incredible Metal Slug makeover. But...
...it just didn't meet the requirements in which I would score this game a flat-out ten.
Graphics - You used a couple of sprites in there, but other than that, they're the best non-sprite, Metal Slug graphics I've seen in a while. All made by you. They're phenomenal, really.
Style - It's a great game, but not your own. Make something other than a copyrighted game and we'll talk.
Sound - Incredible sound. But still, not your own. The background song I can't place my thumb on though.
Violence - Of course, as in all Metal Slug games, you will see violence. But this... well, you left out the blood. What's the deal on that? No need for removing the blood effects, no need at all. But I did like the frying pan though, :).
Interactivity - Games have interactivity. But I'd like to see an awesome like this with a language changer. I couldn't tell what the hell I was clicking on.
Humor - Frying pan + Smack = Major Laugh Out Loud.
Overall - Overall, it's just an okay game. It's great and all that you used your own graphics, but that's just not enough. Maybe the next game you submit to this site will be an original. Then, only then, will I be willing to give it a ten.
Great game, and, hope to see you in the future! Good luck.