User blog comment:CC. Miscallaenous/Red SOUL/@comment-46379017-20200901202350

You are right, the soul of Frisk has no confirmed trait, and so the community came up with Determination since that was what showed up on the safe points. Same thing with Deltarune. However, there is one question, and tell me if I'm wrong or didn't understand, but the question is: Chara. We never play as Chara and don't tell me "oH We PLaY As ChARA iN GeNOcIde" because we really play as Genocide! Frisk, not directly Chara. Chara said something about that with each kill you become closer to being Chara. At the point we kill Flowey, Frisk would have been around 99% Chara, 1% themselves. After we kill Flowey we immediately see Chara, No cutscenes as far as I remember. So, we never play literally AS Chara, just them taking us over slowly. But this IS the internet so take this however you see fit.