You obviously don't understand the full meaning and purpose for copyright. Think of it like an artistic or intellectual right. Granted we wouldn't gain anything from it, but that's hardly the point.
By the wzy, I only changed hair color because, at first I couldn't even see it. When I loaded the Sprite Page and zoomed then I noticed the light grey color.
Well you enemies have to be assigned to variables, so just use rnd in the range of those enemies and do it a set number of times(how many enemies you want)