Metal Slug has such awesome concept art and sprites that I just had to make something metal sluggish. I just finished this peice which has been in the making for about a month. This was origanally supposed to be 16 colors, but I couldn't shade the gun without going over. 

Thanks to Manupix, Eyecraft, and the other fellows over at pixelation and here in the pixeljoint forums, I was able to take this a lot farther than I thought I could. I don't think I ever got the legs right, but I've worked on this too long and it's time to call it quits.