A few of you have been wondering why I've made "Model O" have brown hair. The reason for this is actually rather simple. The original few concept arts for "Omega" also known as "Model O" did not have the flowing blond hair that Zero had. The original concept art actually had black hair, but the creators decided that the hair didn't seem to work when the sprite was made, so on their second concept art they tried brown which worked much better, yet they still felt that it didn't give the epic feel when Omega and Zero clashed in MMZ3.

So in the end they decided to make Omega a carbon copy of Zero except that purple Zet Sabre that Omega always seems to have.

I however felt that the second concept they had for Omega worked out a little better. This is the reason for the brown haired Model O in my sprite comic.