A commission for Kong on FA - thank you!
Metal Slug has some of the best spritework ever. It's beautiful, well animated, and looks great. I haven't done a lot from the games though because it's so complicated. Marco here is an exception, I've done one or two pieces of him before.
I had to take some liberties with the sprite- his pants were more of a desert brown then the urban gray I used, but I like how the substitution turned out!
Original sprite can be found here: http://www.spriters-resource.com/arcade/ms/sheet/11225/. Credit goes to Kevin Huff for the rip.