Board Thread:General Discussion/@comment-24100805-20160201152915/@comment-33349719-20171206114330

Chara is a girl. And Frisk is unknown because in game they refer to them as "human" or "child". But according to the game, only fights with male enemies include flirting in the act menu. Also charcters like Papyrus or Napstablook are passionate or serious if we flirt in their fight so Frisk will most likely be a girl. Or maybe since Frisk is the protagonist, Toby Fox designed them to not look like either gender because Frisk is suppose to reflect your actions, instead of playing a specific way or else failing.