I know they both supposed to be genderless but still, most people prefer to classify them as a certain gender. Some classify Chara and Frisk as girls, guys or one of each. In my opinion, I see Frisk as a boy. He is simply a boy who wants to go home and then slowly befriends all the monsters of the Underground. Even ones you'd think would be impossible to befriend such as Undyne. As for Chara, I see her as a girl. Now listen, everyone has their own opinion on the character of Chara. You can guess that she's evil, misunderstood or good all along. I am one of those people who see her as a villain. Or should I say a demon. She's a vengeful spirit unleased upon the Underground, awakened by Frisk's fall who's desire to commit genocide has now caused her to go on a vengeful rage. Maybe the living Chara was different, but even Asriel said that Chara was a little crazy at times, despite them being best friends. Now as for the gender part, you can easily say, "Well, a boy can be those things too y'know." I see Chara as a girl because aside from the obvious feminine look, when I see the character, I see a girl. When I look at male!Chara and female!Chara and compare which one looks more terrifying and menacing in demon form, I see the female version to be much more intimidating. Anyway, that's just how I see the genders. How about you guys? How do you see the genders?