Board Thread:General Discussion/@comment-32182236-20180104155430/@comment-32182236-20180908115351

As Flowey demonstrated, it is still possible to align yourself with good or evil, even without a SOUL. You just don't feel compassion without a SOUL-And what's the last thing Chara remembers? Asriel getting the both of them killed. And it's clear that LOVE is strength to Chara, because directly after killing Flowey, after they speak to you, they destroy the entire world. Frisk was able to kill Flowey in just one hit after he turned back to normal. So, Chara should be able to do that as well.

By the way.. Chara DID possess Frisk after Pacifist.. Well, if they got your SOUL before, by doing Genocide. You have to choose to give up your SOUL. Of course, if you don't, Chara won't ever let the world come back. (Or you could just not do Genocide and not let them get the power to do this in the first place.)