How long ago was the crash? And I'm the one to recreate this thread? Wow. Anyways, the rules, as best as I can remember them, are characters that are traps or reverse traps. Or something like that. Maybe someone can help me out on that. Here are some examples of "Gender Mysterious" characters, starting with the character that made me think of doing this in the first place.
Lucius from Fire Emblem. Sure, he's male, but he looks a lot like a chick!
Viddy Narcy, the quintessential "Gender Mysterious" character. In his own words, he "transcends gender"
Gogo, from Final Fantasy V and VI (6 and 5 in this order, BTW). What is it?
Just to throw Quina Quen in too. Gender? Who knows!
Come on with your pics! I want to see them! And if someone has the rules from the old topic, or knows them, please post them, or if you have the power, edit my post to add them.